289747450

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{81619}}^1$

素因数の和:81702

約数の個数: 24

約数和(自身を含む): 546527520

約数和(自身を除く): 256780070

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 81619, 163238, 408095, 816190, 2040475, 4080950, 5794949, 11589898, 28974745, 57949490, 144873725, 289747450]

約数ペア:

[(1, 289747450), (2, 144873725), (5, 57949490), (10, 28974745), (25, 11589898), (50, 5794949), (71, 4080950), (142, 2040475), (355, 816190), (710, 408095), (1775, 163238), (3550, 81619)]