165486680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{421}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 386484480

約数和(自身を除く): 220997800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 317, 421, 620, 634, 842, 1240, 1268, 1585, 1684, 2105, 2536, 3170, 3368, 4210, 6340, 8420, 9827, 12680, 13051, 16840, 19654, 26102, 39308, 49135, 52204, 65255, 78616, 98270, 104408, 130510, 133457, 196540, 261020, 266914, 393080, 522040, 533828, 667285, 1067656, 1334570, 2669140, 4137167, 5338280, 8274334, 16548668, 20685835, 33097336, 41371670, 82743340, 165486680]

約数ペア:

[(1, 165486680), (2, 82743340), (4, 41371670), (5, 33097336), (8, 20685835), (10, 16548668), (20, 8274334), (31, 5338280), (40, 4137167), (62, 2669140), (124, 1334570), (155, 1067656), (248, 667285), (310, 533828), (317, 522040), (421, 393080), (620, 266914), (634, 261020), (842, 196540), (1240, 133457), (1268, 130510), (1585, 104408), (1684, 98270), (2105, 78616), (2536, 65255), (3170, 52204), (3368, 49135), (4210, 39308), (6340, 26102), (8420, 19654), (9827, 16840), (12680, 13051)]