7788980

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2039}}^1$

素因数の和:2239

約数の個数: 24

約数和(自身を含む): 16450560

約数和(自身を除く): 8661580

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 2039, 3820, 4078, 8156, 10195, 20390, 40780, 389449, 778898, 1557796, 1947245, 3894490, 7788980]

約数ペア:

[(1, 7788980), (2, 3894490), (4, 1947245), (5, 1557796), (10, 778898), (20, 389449), (191, 40780), (382, 20390), (764, 10195), (955, 8156), (1910, 4078), (2039, 3820)]