638861580

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:331

約数の個数: 288

約数和(自身を含む): 2333560320

約数和(自身を除く): 1694698740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 89, 90, 105, 108, 126, 135, 140, 162, 178, 180, 189, 210, 211, 243, 252, 267, 270, 315, 324, 356, 378, 405, 420, 422, 445, 486, 534, 540, 567, 623, 630, 633, 756, 801, 810, 844, 890, 945, 972, 1055, 1068, 1134, 1215, 1246, 1260, 1266, 1335, 1477, 1602, 1620, 1701, 1780, 1869, 1890, 1899, 2110, 2268, 2403, 2430, 2492, 2532, 2670, 2835, 2954, 3115, 3165, 3204, 3402, 3738, 3780, 3798, 4005, 4220, 4431, 4806, 4860, 5340, 5607, 5670, 5697, 5908, 6230, 6330, 6804, 7209, 7385, 7476, 7596, 8010, 8505, 8862, 9345, 9495, 9612, 11214, 11340, 11394, 12015, 12460, 12660, 13293, 14418, 14770, 16020, 16821, 17010, 17091, 17724, 18690, 18779, 18990, 21627, 22155, 22428, 22788, 24030, 26586, 28035, 28485, 28836, 29540, 33642, 34020, 34182, 36045, 37380, 37558, 37980, 39879, 43254, 44310, 48060, 50463, 51273, 53172, 56070, 56337, 56970, 66465, 67284, 68364, 72090, 75116, 79758, 84105, 85455, 86508, 88620, 93895, 100926, 102546, 108135, 112140, 112674, 113940, 119637, 131453, 132930, 144180, 151389, 159516, 168210, 169011, 170910, 187790, 199395, 201852, 205092, 216270, 225348, 239274, 252315, 256365, 262906, 265860, 281685, 302778, 336420, 338022, 341820, 358911, 375580, 394359, 398790, 432540, 478548, 504630, 507033, 512730, 525812, 563370, 598185, 605556, 657265, 676044, 717822, 756945, 788718, 797580, 845055, 1009260, 1014066, 1025460, 1126740, 1183077, 1196370, 1314530, 1435644, 1513890, 1521099, 1577436, 1690110, 1794555, 1971795, 2028132, 2366154, 2392740, 2535165, 2629060, 3027780, 3042198, 3380220, 3549231, 3589110, 3943590, 4563297, 4732308, 5070330, 5915385, 6084396, 7098462, 7178220, 7605495, 7887180, 9126594, 10140660, 10647693, 11830770, 14196924, 15210990, 17746155, 18253188, 21295386, 22816485, 23661540, 30421980, 31943079, 35492310, 42590772, 45632970, 53238465, 63886158, 70984620, 91265940, 106476930, 127772316, 159715395, 212953860, 319430790, 638861580]

約数ペア:

[(1, 638861580), (2, 319430790), (3, 212953860), (4, 159715395), (5, 127772316), (6, 106476930), (7, 91265940), (9, 70984620), (10, 63886158), (12, 53238465), (14, 45632970), (15, 42590772), (18, 35492310), (20, 31943079), (21, 30421980), (27, 23661540), (28, 22816485), (30, 21295386), (35, 18253188), (36, 17746155), (42, 15210990), (45, 14196924), (54, 11830770), (60, 10647693), (63, 10140660), (70, 9126594), (81, 7887180), (84, 7605495), (89, 7178220), (90, 7098462), (105, 6084396), (108, 5915385), (126, 5070330), (135, 4732308), (140, 4563297), (162, 3943590), (178, 3589110), (180, 3549231), (189, 3380220), (210, 3042198), (211, 3027780), (243, 2629060), (252, 2535165), (267, 2392740), (270, 2366154), (315, 2028132), (324, 1971795), (356, 1794555), (378, 1690110), (405, 1577436), (420, 1521099), (422, 1513890), (445, 1435644), (486, 1314530), (534, 1196370), (540, 1183077), (567, 1126740), (623, 1025460), (630, 1014066), (633, 1009260), (756, 845055), (801, 797580), (810, 788718), (844, 756945), (890, 717822), (945, 676044), (972, 657265), (1055, 605556), (1068, 598185), (1134, 563370), (1215, 525812), (1246, 512730), (1260, 507033), (1266, 504630), (1335, 478548), (1477, 432540), (1602, 398790), (1620, 394359), (1701, 375580), (1780, 358911), (1869, 341820), (1890, 338022), (1899, 336420), (2110, 302778), (2268, 281685), (2403, 265860), (2430, 262906), (2492, 256365), (2532, 252315), (2670, 239274), (2835, 225348), (2954, 216270), (3115, 205092), (3165, 201852), (3204, 199395), (3402, 187790), (3738, 170910), (3780, 169011), (3798, 168210), (4005, 159516), (4220, 151389), (4431, 144180), (4806, 132930), (4860, 131453), (5340, 119637), (5607, 113940), (5670, 112674), (5697, 112140), (5908, 108135), (6230, 102546), (6330, 100926), (6804, 93895), (7209, 88620), (7385, 86508), (7476, 85455), (7596, 84105), (8010, 79758), (8505, 75116), (8862, 72090), (9345, 68364), (9495, 67284), (9612, 66465), (11214, 56970), (11340, 56337), (11394, 56070), (12015, 53172), (12460, 51273), (12660, 50463), (13293, 48060), (14418, 44310), (14770, 43254), (16020, 39879), (16821, 37980), (17010, 37558), (17091, 37380), (17724, 36045), (18690, 34182), (18779, 34020), (18990, 33642), (21627, 29540), (22155, 28836), (22428, 28485), (22788, 28035), (24030, 26586)]