42478490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{1249}}^1$

素因数の和:1454

約数の個数: 32

約数和(自身を含む): 81000000

約数和(自身を除く): 38521510

約数列:

[1, 2, 5, 10, 19, 38, 95, 179, 190, 358, 895, 1249, 1790, 2498, 3401, 6245, 6802, 12490, 17005, 23731, 34010, 47462, 118655, 223571, 237310, 447142, 1117855, 2235710, 4247849, 8495698, 21239245, 42478490]

約数ペア:

[(1, 42478490), (2, 21239245), (5, 8495698), (10, 4247849), (19, 2235710), (38, 1117855), (95, 447142), (179, 237310), (190, 223571), (358, 118655), (895, 47462), (1249, 34010), (1790, 23731), (2498, 17005), (3401, 12490), (6245, 6802)]