628020880

素因数分解:

$2^4\times 5^1\times {\mathrm{7850261}}^1$

素因数の和:7850274

約数の個数: 20

約数和(自身を含む): 1460148732

約数和(自身を除く): 832127852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 7850261, 15700522, 31401044, 39251305, 62802088, 78502610, 125604176, 157005220, 314010440, 628020880]

約数ペア:

[(1, 628020880), (2, 314010440), (4, 157005220), (5, 125604176), (8, 78502610), (10, 62802088), (16, 39251305), (20, 31401044), (40, 15700522), (80, 7850261)]