3990760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 9720000

約数和(自身を除く): 5729240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 59, 76, 89, 95, 118, 152, 178, 190, 236, 295, 356, 380, 445, 472, 590, 712, 760, 890, 1121, 1180, 1691, 1780, 2242, 2360, 3382, 3560, 4484, 5251, 5605, 6764, 8455, 8968, 10502, 11210, 13528, 16910, 21004, 22420, 26255, 33820, 42008, 44840, 52510, 67640, 99769, 105020, 199538, 210040, 399076, 498845, 798152, 997690, 1995380, 3990760]

約数ペア:

[(1, 3990760), (2, 1995380), (4, 997690), (5, 798152), (8, 498845), (10, 399076), (19, 210040), (20, 199538), (38, 105020), (40, 99769), (59, 67640), (76, 52510), (89, 44840), (95, 42008), (118, 33820), (152, 26255), (178, 22420), (190, 21004), (236, 16910), (295, 13528), (356, 11210), (380, 10502), (445, 8968), (472, 8455), (590, 6764), (712, 5605), (760, 5251), (890, 4484), (1121, 3560), (1180, 3382), (1691, 2360), (1780, 2242)]