65400380

素因数分解:

$2^2\times 5^1\times {\mathrm{977}}^1\times {\mathrm{3347}}^1$

素因数の和:4333

約数の個数: 24

約数和(自身を含む): 137522448

約数和(自身を除く): 72122068

約数列:

[1, 2, 4, 5, 10, 20, 977, 1954, 3347, 3908, 4885, 6694, 9770, 13388, 16735, 19540, 33470, 66940, 3270019, 6540038, 13080076, 16350095, 32700190, 65400380]

約数ペア:

[(1, 65400380), (2, 32700190), (4, 16350095), (5, 13080076), (10, 6540038), (20, 3270019), (977, 66940), (1954, 33470), (3347, 19540), (3908, 16735), (4885, 13388), (6694, 9770)]