291115280

素因数分解:

$2^4\times 5^1\times {\mathrm{3638941}}^1$

素因数の和:3638954

約数の個数: 20

約数和(自身を含む): 676843212

約数和(自身を除く): 385727932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3638941, 7277882, 14555764, 18194705, 29111528, 36389410, 58223056, 72778820, 145557640, 291115280]

約数ペア:

[(1, 291115280), (2, 145557640), (4, 72778820), (5, 58223056), (8, 36389410), (10, 29111528), (16, 18194705), (20, 14555764), (40, 7277882), (80, 3638941)]