40881428

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 84672000

約数和(自身を除く): 43790572

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 149, 164, 239, 287, 298, 478, 574, 596, 956, 1043, 1148, 1673, 2086, 3346, 4172, 6109, 6692, 9799, 12218, 19598, 24436, 35611, 39196, 42763, 68593, 71222, 85526, 137186, 142444, 171052, 249277, 274372, 498554, 997108, 1460051, 2920102, 5840204, 10220357, 20440714, 40881428]

約数ペア:

[(1, 40881428), (2, 20440714), (4, 10220357), (7, 5840204), (14, 2920102), (28, 1460051), (41, 997108), (82, 498554), (149, 274372), (164, 249277), (239, 171052), (287, 142444), (298, 137186), (478, 85526), (574, 71222), (596, 68593), (956, 42763), (1043, 39196), (1148, 35611), (1673, 24436), (2086, 19598), (3346, 12218), (4172, 9799), (6109, 6692)]