69982040

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2131}}^1$

素因数の和:2963

約数の個数: 32

約数和(自身を含む): 157725360

約数和(自身を除く): 87743320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 2131, 3284, 4105, 4262, 6568, 8210, 8524, 10655, 16420, 17048, 21310, 32840, 42620, 85240, 1749551, 3499102, 6998204, 8747755, 13996408, 17495510, 34991020, 69982040]

約数ペア:

[(1, 69982040), (2, 34991020), (4, 17495510), (5, 13996408), (8, 8747755), (10, 6998204), (20, 3499102), (40, 1749551), (821, 85240), (1642, 42620), (2131, 32840), (3284, 21310), (4105, 17048), (4262, 16420), (6568, 10655), (8210, 8524)]