28990010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:411

約数の個数: 64

約数和(自身を含む): 63866880

約数和(自身を除く): 34876870

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 71, 95, 133, 142, 190, 266, 307, 355, 497, 614, 665, 710, 994, 1330, 1349, 1535, 2149, 2485, 2698, 3070, 4298, 4970, 5833, 6745, 9443, 10745, 11666, 13490, 18886, 21490, 21797, 29165, 40831, 43594, 47215, 58330, 81662, 94430, 108985, 152579, 204155, 217970, 305158, 408310, 414143, 762895, 828286, 1525790, 2070715, 2899001, 4141430, 5798002, 14495005, 28990010]

約数ペア:

[(1, 28990010), (2, 14495005), (5, 5798002), (7, 4141430), (10, 2899001), (14, 2070715), (19, 1525790), (35, 828286), (38, 762895), (70, 414143), (71, 408310), (95, 305158), (133, 217970), (142, 204155), (190, 152579), (266, 108985), (307, 94430), (355, 81662), (497, 58330), (614, 47215), (665, 43594), (710, 40831), (994, 29165), (1330, 21797), (1349, 21490), (1535, 18886), (2149, 13490), (2485, 11666), (2698, 10745), (3070, 9443), (4298, 6745), (4970, 5833)]