4101980

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{647}}^1$

素因数の和:973

約数の個数: 24

約数和(自身を含む): 8654688

約数和(自身を除く): 4552708

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 647, 1268, 1294, 1585, 2588, 3170, 3235, 6340, 6470, 12940, 205099, 410198, 820396, 1025495, 2050990, 4101980]

約数ペア:

[(1, 4101980), (2, 2050990), (4, 1025495), (5, 820396), (10, 410198), (20, 205099), (317, 12940), (634, 6470), (647, 6340), (1268, 3235), (1294, 3170), (1585, 2588)]