128091388

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{4447}}^1$

素因数の和:4849

約数の個数: 24

約数和(自身を含む): 236633600

約数和(自身を除く): 108542212

約数列:

[1, 2, 4, 19, 38, 76, 379, 758, 1516, 4447, 7201, 8894, 14402, 17788, 28804, 84493, 168986, 337972, 1685413, 3370826, 6741652, 32022847, 64045694, 128091388]

約数ペア:

[(1, 128091388), (2, 64045694), (4, 32022847), (19, 6741652), (38, 3370826), (76, 1685413), (379, 337972), (758, 168986), (1516, 84493), (4447, 28804), (7201, 17788), (8894, 14402)]