165512720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66739}}^1$

素因数の和:66783

約数の個数: 40

約数和(自身を含む): 397236480

約数和(自身を除く): 231723760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 66739, 133478, 266956, 333695, 533912, 667390, 1067824, 1334780, 2068909, 2669560, 4137818, 5339120, 8275636, 10344545, 16551272, 20689090, 33102544, 41378180, 82756360, 165512720]

約数ペア:

[(1, 165512720), (2, 82756360), (4, 41378180), (5, 33102544), (8, 20689090), (10, 16551272), (16, 10344545), (20, 8275636), (31, 5339120), (40, 4137818), (62, 2669560), (80, 2068909), (124, 1334780), (155, 1067824), (248, 667390), (310, 533912), (496, 333695), (620, 266956), (1240, 133478), (2480, 66739)]