210619340

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{821}}^1$

素因数の和:1058

約数の個数: 48

約数和(自身を含む): 450745344

約数和(自身を除く): 240126004

約数列:

[1, 2, 4, 5, 10, 20, 101, 127, 202, 254, 404, 505, 508, 635, 821, 1010, 1270, 1642, 2020, 2540, 3284, 4105, 8210, 12827, 16420, 25654, 51308, 64135, 82921, 104267, 128270, 165842, 208534, 256540, 331684, 414605, 417068, 521335, 829210, 1042670, 1658420, 2085340, 10530967, 21061934, 42123868, 52654835, 105309670, 210619340]

約数ペア:

[(1, 210619340), (2, 105309670), (4, 52654835), (5, 42123868), (10, 21061934), (20, 10530967), (101, 2085340), (127, 1658420), (202, 1042670), (254, 829210), (404, 521335), (505, 417068), (508, 414605), (635, 331684), (821, 256540), (1010, 208534), (1270, 165842), (1642, 128270), (2020, 104267), (2540, 82921), (3284, 64135), (4105, 51308), (8210, 25654), (12827, 16420)]