28118370

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{521}}^1$

素因数の和:795

約数の個数: 64

約数和(自身を含む): 77573376

約数和(自身を除く): 49455006

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 257, 514, 521, 771, 1042, 1285, 1542, 1563, 1799, 2570, 2605, 3126, 3598, 3647, 3855, 5210, 5397, 7294, 7710, 7815, 8995, 10794, 10941, 15630, 17990, 18235, 21882, 26985, 36470, 53970, 54705, 109410, 133897, 267794, 401691, 669485, 803382, 937279, 1338970, 1874558, 2008455, 2811837, 4016910, 4686395, 5623674, 9372790, 14059185, 28118370]

約数ペア:

[(1, 28118370), (2, 14059185), (3, 9372790), (5, 5623674), (6, 4686395), (7, 4016910), (10, 2811837), (14, 2008455), (15, 1874558), (21, 1338970), (30, 937279), (35, 803382), (42, 669485), (70, 401691), (105, 267794), (210, 133897), (257, 109410), (514, 54705), (521, 53970), (771, 36470), (1042, 26985), (1285, 21882), (1542, 18235), (1563, 17990), (1799, 15630), (2570, 10941), (2605, 10794), (3126, 8995), (3598, 7815), (3647, 7710), (3855, 7294), (5210, 5397)]