207521860

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{13}}^2\times {\mathrm{179}}^1$

素因数の和:235

約数の個数: 144

約数和(自身を含む): 553392000

約数和(自身を除く): 345870140

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 169, 179, 182, 196, 245, 260, 338, 343, 358, 364, 455, 490, 637, 676, 686, 716, 845, 895, 910, 980, 1183, 1253, 1274, 1372, 1690, 1715, 1790, 1820, 2327, 2366, 2506, 2548, 3185, 3380, 3430, 3580, 4459, 4654, 4732, 5012, 5915, 6265, 6370, 6860, 8281, 8771, 8918, 9308, 11635, 11830, 12530, 12740, 16289, 16562, 17542, 17836, 22295, 23270, 23660, 25060, 30251, 32578, 33124, 35084, 41405, 43855, 44590, 46540, 57967, 60502, 61397, 65156, 81445, 82810, 87710, 89180, 114023, 115934, 121004, 122794, 151255, 162890, 165620, 175420, 211757, 228046, 231868, 245588, 289835, 302510, 306985, 325780, 423514, 456092, 570115, 579670, 605020, 613970, 798161, 847028, 1058785, 1140230, 1159340, 1227940, 1482299, 1596322, 2117570, 2280460, 2964598, 3192644, 3990805, 4235140, 5929196, 7411495, 7981610, 10376093, 14822990, 15963220, 20752186, 29645980, 41504372, 51880465, 103760930, 207521860]

約数ペア:

[(1, 207521860), (2, 103760930), (4, 51880465), (5, 41504372), (7, 29645980), (10, 20752186), (13, 15963220), (14, 14822990), (20, 10376093), (26, 7981610), (28, 7411495), (35, 5929196), (49, 4235140), (52, 3990805), (65, 3192644), (70, 2964598), (91, 2280460), (98, 2117570), (130, 1596322), (140, 1482299), (169, 1227940), (179, 1159340), (182, 1140230), (196, 1058785), (245, 847028), (260, 798161), (338, 613970), (343, 605020), (358, 579670), (364, 570115), (455, 456092), (490, 423514), (637, 325780), (676, 306985), (686, 302510), (716, 289835), (845, 245588), (895, 231868), (910, 228046), (980, 211757), (1183, 175420), (1253, 165620), (1274, 162890), (1372, 151255), (1690, 122794), (1715, 121004), (1790, 115934), (1820, 114023), (2327, 89180), (2366, 87710), (2506, 82810), (2548, 81445), (3185, 65156), (3380, 61397), (3430, 60502), (3580, 57967), (4459, 46540), (4654, 44590), (4732, 43855), (5012, 41405), (5915, 35084), (6265, 33124), (6370, 32578), (6860, 30251), (8281, 25060), (8771, 23660), (8918, 23270), (9308, 22295), (11635, 17836), (11830, 17542), (12530, 16562), (12740, 16289)]