161520760

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{769}}^1$

素因数の和:928

約数の個数: 64

約数和(自身を含む): 374220000

約数和(自身を除く): 212699240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 89, 118, 178, 236, 295, 356, 445, 472, 590, 712, 769, 890, 1180, 1538, 1780, 2360, 3076, 3560, 3845, 5251, 6152, 7690, 10502, 15380, 21004, 26255, 30760, 42008, 45371, 52510, 68441, 90742, 105020, 136882, 181484, 210040, 226855, 273764, 342205, 362968, 453710, 547528, 684410, 907420, 1368820, 1814840, 2737640, 4038019, 8076038, 16152076, 20190095, 32304152, 40380190, 80760380, 161520760]

約数ペア:

[(1, 161520760), (2, 80760380), (4, 40380190), (5, 32304152), (8, 20190095), (10, 16152076), (20, 8076038), (40, 4038019), (59, 2737640), (89, 1814840), (118, 1368820), (178, 907420), (236, 684410), (295, 547528), (356, 453710), (445, 362968), (472, 342205), (590, 273764), (712, 226855), (769, 210040), (890, 181484), (1180, 136882), (1538, 105020), (1780, 90742), (2360, 68441), (3076, 52510), (3560, 45371), (3845, 42008), (5251, 30760), (6152, 26255), (7690, 21004), (10502, 15380)]