128828876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{6521}}^1$

素因数の和:6985

約数の個数: 24

約数和(自身を含む): 246531600

約数和(自身を除く): 117702724

約数列:

[1, 2, 4, 11, 22, 44, 449, 898, 1796, 4939, 6521, 9878, 13042, 19756, 26084, 71731, 143462, 286924, 2927929, 5855858, 11711716, 32207219, 64414438, 128828876]

約数ペア:

[(1, 128828876), (2, 64414438), (4, 32207219), (11, 11711716), (22, 5855858), (44, 2927929), (449, 286924), (898, 143462), (1796, 71731), (4939, 26084), (6521, 19756), (9878, 13042)]