251663580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:449

約数の個数: 288

約数和(自身を含む): 956067840

約数和(自身を除く): 704404260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 31, 34, 35, 36, 42, 45, 51, 60, 62, 63, 68, 70, 84, 85, 90, 93, 102, 105, 119, 124, 126, 140, 153, 155, 170, 180, 186, 204, 210, 217, 238, 252, 255, 279, 306, 310, 315, 340, 357, 372, 379, 420, 434, 465, 476, 510, 527, 558, 595, 612, 620, 630, 651, 714, 758, 765, 868, 930, 1020, 1054, 1071, 1085, 1116, 1137, 1190, 1260, 1302, 1395, 1428, 1516, 1530, 1581, 1785, 1860, 1895, 1953, 2108, 2142, 2170, 2274, 2380, 2604, 2635, 2653, 2790, 3060, 3162, 3255, 3411, 3570, 3689, 3790, 3906, 4284, 4340, 4548, 4743, 5270, 5306, 5355, 5580, 5685, 6324, 6443, 6510, 6822, 7140, 7378, 7580, 7812, 7905, 7959, 9486, 9765, 10540, 10612, 10710, 11067, 11370, 11749, 12886, 13020, 13265, 13644, 14756, 15810, 15918, 17055, 18445, 18972, 19329, 19530, 21420, 22134, 22740, 23498, 23715, 23877, 25772, 26530, 31620, 31836, 32215, 33201, 34110, 35247, 36890, 38658, 39060, 39795, 44268, 45101, 46996, 47430, 47754, 53060, 55335, 57987, 58745, 64430, 66402, 68220, 70494, 73780, 77316, 79590, 82243, 90202, 94860, 95508, 96645, 105741, 110670, 115974, 117490, 119385, 128860, 132804, 135303, 140988, 159180, 164486, 166005, 176235, 180404, 193290, 199733, 211482, 221340, 225505, 231948, 234980, 238770, 246729, 270606, 289935, 328972, 332010, 352470, 386580, 399466, 405909, 411215, 422964, 451010, 477540, 493458, 528705, 541212, 579870, 599199, 664020, 676515, 704940, 740187, 798932, 811818, 822430, 902020, 986916, 998665, 1057410, 1159740, 1198398, 1233645, 1353030, 1398131, 1480374, 1623636, 1644860, 1797597, 1997330, 2029545, 2114820, 2396796, 2467290, 2706060, 2796262, 2960748, 2995995, 3595194, 3700935, 3994660, 4059090, 4194393, 4934580, 5592524, 5991990, 6990655, 7190388, 7401870, 8118180, 8388786, 8987985, 11983980, 12583179, 13981310, 14803740, 16777572, 17975970, 20971965, 25166358, 27962620, 35951940, 41943930, 50332716, 62915895, 83887860, 125831790, 251663580]

約数ペア:

[(1, 251663580), (2, 125831790), (3, 83887860), (4, 62915895), (5, 50332716), (6, 41943930), (7, 35951940), (9, 27962620), (10, 25166358), (12, 20971965), (14, 17975970), (15, 16777572), (17, 14803740), (18, 13981310), (20, 12583179), (21, 11983980), (28, 8987985), (30, 8388786), (31, 8118180), (34, 7401870), (35, 7190388), (36, 6990655), (42, 5991990), (45, 5592524), (51, 4934580), (60, 4194393), (62, 4059090), (63, 3994660), (68, 3700935), (70, 3595194), (84, 2995995), (85, 2960748), (90, 2796262), (93, 2706060), (102, 2467290), (105, 2396796), (119, 2114820), (124, 2029545), (126, 1997330), (140, 1797597), (153, 1644860), (155, 1623636), (170, 1480374), (180, 1398131), (186, 1353030), (204, 1233645), (210, 1198398), (217, 1159740), (238, 1057410), (252, 998665), (255, 986916), (279, 902020), (306, 822430), (310, 811818), (315, 798932), (340, 740187), (357, 704940), (372, 676515), (379, 664020), (420, 599199), (434, 579870), (465, 541212), (476, 528705), (510, 493458), (527, 477540), (558, 451010), (595, 422964), (612, 411215), (620, 405909), (630, 399466), (651, 386580), (714, 352470), (758, 332010), (765, 328972), (868, 289935), (930, 270606), (1020, 246729), (1054, 238770), (1071, 234980), (1085, 231948), (1116, 225505), (1137, 221340), (1190, 211482), (1260, 199733), (1302, 193290), (1395, 180404), (1428, 176235), (1516, 166005), (1530, 164486), (1581, 159180), (1785, 140988), (1860, 135303), (1895, 132804), (1953, 128860), (2108, 119385), (2142, 117490), (2170, 115974), (2274, 110670), (2380, 105741), (2604, 96645), (2635, 95508), (2653, 94860), (2790, 90202), (3060, 82243), (3162, 79590), (3255, 77316), (3411, 73780), (3570, 70494), (3689, 68220), (3790, 66402), (3906, 64430), (4284, 58745), (4340, 57987), (4548, 55335), (4743, 53060), (5270, 47754), (5306, 47430), (5355, 46996), (5580, 45101), (5685, 44268), (6324, 39795), (6443, 39060), (6510, 38658), (6822, 36890), (7140, 35247), (7378, 34110), (7580, 33201), (7812, 32215), (7905, 31836), (7959, 31620), (9486, 26530), (9765, 25772), (10540, 23877), (10612, 23715), (10710, 23498), (11067, 22740), (11370, 22134), (11749, 21420), (12886, 19530), (13020, 19329), (13265, 18972), (13644, 18445), (14756, 17055), (15810, 15918)]