64660336

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{310867}}^1$

素因数の和:310888

約数の個数: 20

約数和(自身を含む): 134916712

約数和(自身を除く): 70256376

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 310867, 621734, 1243468, 2486936, 4041271, 4973872, 8082542, 16165084, 32330168, 64660336]

約数ペア:

[(1, 64660336), (2, 32330168), (4, 16165084), (8, 8082542), (13, 4973872), (16, 4041271), (26, 2486936), (52, 1243468), (104, 621734), (208, 310867)]