31295960

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 72900000

約数和(自身を除く): 41604040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 89, 118, 149, 178, 236, 295, 298, 356, 445, 472, 590, 596, 712, 745, 890, 1180, 1192, 1490, 1780, 2360, 2980, 3560, 5251, 5960, 8791, 10502, 13261, 17582, 21004, 26255, 26522, 35164, 42008, 43955, 52510, 53044, 66305, 70328, 87910, 105020, 106088, 132610, 175820, 210040, 265220, 351640, 530440, 782399, 1564798, 3129596, 3911995, 6259192, 7823990, 15647980, 31295960]

約数ペア:

[(1, 31295960), (2, 15647980), (4, 7823990), (5, 6259192), (8, 3911995), (10, 3129596), (20, 1564798), (40, 782399), (59, 530440), (89, 351640), (118, 265220), (149, 210040), (178, 175820), (236, 132610), (295, 106088), (298, 105020), (356, 87910), (445, 70328), (472, 66305), (590, 53044), (596, 52510), (712, 43955), (745, 42008), (890, 35164), (1180, 26522), (1192, 26255), (1490, 21004), (1780, 17582), (2360, 13261), (2980, 10502), (3560, 8791), (5251, 5960)]