83891740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1\times {\mathrm{389}}^1$

素因数の和:702

約数の個数: 48

約数和(自身を含む): 181621440

約数和(自身を除く): 97729700

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 263, 389, 410, 526, 778, 820, 1052, 1315, 1556, 1945, 2630, 3890, 5260, 7780, 10783, 15949, 21566, 31898, 43132, 53915, 63796, 79745, 102307, 107830, 159490, 204614, 215660, 318980, 409228, 511535, 1023070, 2046140, 4194587, 8389174, 16778348, 20972935, 41945870, 83891740]

約数ペア:

[(1, 83891740), (2, 41945870), (4, 20972935), (5, 16778348), (10, 8389174), (20, 4194587), (41, 2046140), (82, 1023070), (164, 511535), (205, 409228), (263, 318980), (389, 215660), (410, 204614), (526, 159490), (778, 107830), (820, 102307), (1052, 79745), (1315, 63796), (1556, 53915), (1945, 43132), (2630, 31898), (3890, 21566), (5260, 15949), (7780, 10783)]