12945980

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{3389}}^1$

素因数の和:3589

約数の個数: 24

約数和(自身を含む): 27336960

約数和(自身を除く): 14390980

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3389, 3820, 6778, 13556, 16945, 33890, 67780, 647299, 1294598, 2589196, 3236495, 6472990, 12945980]

約数ペア:

[(1, 12945980), (2, 6472990), (4, 3236495), (5, 2589196), (10, 1294598), (20, 647299), (191, 67780), (382, 33890), (764, 16945), (955, 13556), (1910, 6778), (3389, 3820)]