88897880

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2707}}^1$

素因数の和:3539

約数の個数: 32

約数和(自身を含む): 200337840

約数和(自身を除く): 111439960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 2707, 3284, 4105, 5414, 6568, 8210, 10828, 13535, 16420, 21656, 27070, 32840, 54140, 108280, 2222447, 4444894, 8889788, 11112235, 17779576, 22224470, 44448940, 88897880]

約数ペア:

[(1, 88897880), (2, 44448940), (4, 22224470), (5, 17779576), (8, 11112235), (10, 8889788), (20, 4444894), (40, 2222447), (821, 108280), (1642, 54140), (2707, 32840), (3284, 27070), (4105, 21656), (5414, 16420), (6568, 13535), (8210, 10828)]