665444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 1279488

約数和(自身を除く): 614044

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 191, 268, 382, 764, 871, 1742, 2483, 3484, 4966, 9932, 12797, 25594, 51188, 166361, 332722, 665444]

約数ペア:

[(1, 665444), (2, 332722), (4, 166361), (13, 51188), (26, 25594), (52, 12797), (67, 9932), (134, 4966), (191, 3484), (268, 2483), (382, 1742), (764, 871)]