81682960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{3533}}^1$

素因数の和:3580

約数の個数: 60

約数和(自身を含む): 201798468

約数和(自身を除く): 120115508

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 578, 680, 1156, 1360, 1445, 2312, 2890, 3533, 4624, 5780, 7066, 11560, 14132, 17665, 23120, 28264, 35330, 56528, 60061, 70660, 120122, 141320, 240244, 282640, 300305, 480488, 600610, 960976, 1021037, 1201220, 2042074, 2402440, 4084148, 4804880, 5105185, 8168296, 10210370, 16336592, 20420740, 40841480, 81682960]

約数ペア:

[(1, 81682960), (2, 40841480), (4, 20420740), (5, 16336592), (8, 10210370), (10, 8168296), (16, 5105185), (17, 4804880), (20, 4084148), (34, 2402440), (40, 2042074), (68, 1201220), (80, 1021037), (85, 960976), (136, 600610), (170, 480488), (272, 300305), (289, 282640), (340, 240244), (578, 141320), (680, 120122), (1156, 70660), (1360, 60061), (1445, 56528), (2312, 35330), (2890, 28264), (3533, 23120), (4624, 17665), (5780, 14132), (7066, 11560)]