18123680

素因数分解:

$2^5\times 5^1\times {\mathrm{227}}^1\times {\mathrm{499}}^1$

素因数の和:741

約数の個数: 48

約数和(自身を含む): 43092000

約数和(自身を除く): 24968320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 227, 454, 499, 908, 998, 1135, 1816, 1996, 2270, 2495, 3632, 3992, 4540, 4990, 7264, 7984, 9080, 9980, 15968, 18160, 19960, 36320, 39920, 79840, 113273, 226546, 453092, 566365, 906184, 1132730, 1812368, 2265460, 3624736, 4530920, 9061840, 18123680]

約数ペア:

[(1, 18123680), (2, 9061840), (4, 4530920), (5, 3624736), (8, 2265460), (10, 1812368), (16, 1132730), (20, 906184), (32, 566365), (40, 453092), (80, 226546), (160, 113273), (227, 79840), (454, 39920), (499, 36320), (908, 19960), (998, 18160), (1135, 15968), (1816, 9980), (1996, 9080), (2270, 7984), (2495, 7264), (3632, 4990), (3992, 4540)]