20115620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2711}}^1$

素因数の和:2780

約数の個数: 48

約数和(自身を含む): 49206528

約数和(自身を除く): 29090908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 2711, 3710, 5422, 7420, 10844, 13555, 18977, 27110, 37954, 54220, 75908, 94885, 143683, 189770, 287366, 379540, 574732, 718415, 1005781, 1436830, 2011562, 2873660, 4023124, 5028905, 10057810, 20115620]

約数ペア:

[(1, 20115620), (2, 10057810), (4, 5028905), (5, 4023124), (7, 2873660), (10, 2011562), (14, 1436830), (20, 1005781), (28, 718415), (35, 574732), (53, 379540), (70, 287366), (106, 189770), (140, 143683), (212, 94885), (265, 75908), (371, 54220), (530, 37954), (742, 27110), (1060, 18977), (1484, 13555), (1855, 10844), (2711, 7420), (3710, 5422)]