79120780

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{18749}}^1$

素因数の和:18969

約数の個数: 24

約数和(自身を含む): 166950000

約数和(自身を除く): 87829220

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 18749, 37498, 74996, 93745, 187490, 374980, 3956039, 7912078, 15824156, 19780195, 39560390, 79120780]

約数ペア:

[(1, 79120780), (2, 39560390), (4, 19780195), (5, 15824156), (10, 7912078), (20, 3956039), (211, 374980), (422, 187490), (844, 93745), (1055, 74996), (2110, 37498), (4220, 18749)]