207910520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{971}}^1$

素因数の和:1136

約数の個数: 64

約数和(自身を含む): 481839840

約数和(自身を除く): 273929320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 101, 106, 202, 212, 265, 404, 424, 505, 530, 808, 971, 1010, 1060, 1942, 2020, 2120, 3884, 4040, 4855, 5353, 7768, 9710, 10706, 19420, 21412, 26765, 38840, 42824, 51463, 53530, 98071, 102926, 107060, 196142, 205852, 214120, 257315, 392284, 411704, 490355, 514630, 784568, 980710, 1029260, 1961420, 2058520, 3922840, 5197763, 10395526, 20791052, 25988815, 41582104, 51977630, 103955260, 207910520]

約数ペア:

[(1, 207910520), (2, 103955260), (4, 51977630), (5, 41582104), (8, 25988815), (10, 20791052), (20, 10395526), (40, 5197763), (53, 3922840), (101, 2058520), (106, 1961420), (202, 1029260), (212, 980710), (265, 784568), (404, 514630), (424, 490355), (505, 411704), (530, 392284), (808, 257315), (971, 214120), (1010, 205852), (1060, 196142), (1942, 107060), (2020, 102926), (2120, 98071), (3884, 53530), (4040, 51463), (4855, 42824), (5353, 38840), (7768, 26765), (9710, 21412), (10706, 19420)]