309664240

素因数分解:

$2^4\times 5^1\times {\mathrm{3870803}}^1$

素因数の和:3870816

約数の個数: 20

約数和(自身を含む): 719969544

約数和(自身を除く): 410305304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3870803, 7741606, 15483212, 19354015, 30966424, 38708030, 61932848, 77416060, 154832120, 309664240]

約数ペア:

[(1, 309664240), (2, 154832120), (4, 77416060), (5, 61932848), (8, 38708030), (10, 30966424), (16, 19354015), (20, 15483212), (40, 7741606), (80, 3870803)]