309605480

素因数分解:

$2^3\times 5^1\times {\mathrm{7740137}}^1$

素因数の和:7740148

約数の個数: 16

約数和(自身を含む): 696612420

約数和(自身を除く): 387006940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7740137, 15480274, 30960548, 38700685, 61921096, 77401370, 154802740, 309605480]

約数ペア:

[(1, 309605480), (2, 154802740), (4, 77401370), (5, 61921096), (8, 38700685), (10, 30960548), (20, 15480274), (40, 7740137)]