812428780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1310369}}^1$

素因数の和:1310409

約数の個数: 24

約数和(自身を含む): 1761137280

約数和(自身を除く): 948708500

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1310369, 2620738, 5241476, 6551845, 13103690, 26207380, 40621439, 81242878, 162485756, 203107195, 406214390, 812428780]

約数ペア:

[(1, 812428780), (2, 406214390), (4, 203107195), (5, 162485756), (10, 81242878), (20, 40621439), (31, 26207380), (62, 13103690), (124, 6551845), (155, 5241476), (310, 2620738), (620, 1310369)]