81002960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59561}}^1$

素因数の和:59591

約数の個数: 40

約数和(自身を含む): 199413576

約数和(自身を除く): 118410616

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 59561, 119122, 238244, 297805, 476488, 595610, 952976, 1012537, 1191220, 2025074, 2382440, 4050148, 4764880, 5062685, 8100296, 10125370, 16200592, 20250740, 40501480, 81002960]

約数ペア:

[(1, 81002960), (2, 40501480), (4, 20250740), (5, 16200592), (8, 10125370), (10, 8100296), (16, 5062685), (17, 4764880), (20, 4050148), (34, 2382440), (40, 2025074), (68, 1191220), (80, 1012537), (85, 952976), (136, 595610), (170, 476488), (272, 297805), (340, 238244), (680, 119122), (1360, 59561)]