128233456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{616507}}^1$

素因数の和:616528

約数の個数: 20

約数和(自身を含む): 267564472

約数和(自身を除く): 139331016

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 616507, 1233014, 2466028, 4932056, 8014591, 9864112, 16029182, 32058364, 64116728, 128233456]

約数ペア:

[(1, 128233456), (2, 64116728), (4, 32058364), (8, 16029182), (13, 9864112), (16, 8014591), (26, 4932056), (52, 2466028), (104, 1233014), (208, 616507)]