64936240

素因数分解:

$2^4\times 5^1\times {\mathrm{811703}}^1$

素因数の和:811716

約数の個数: 20

約数和(自身を含む): 150976944

約数和(自身を除く): 86040704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 811703, 1623406, 3246812, 4058515, 6493624, 8117030, 12987248, 16234060, 32468120, 64936240]

約数ペア:

[(1, 64936240), (2, 32468120), (4, 16234060), (5, 12987248), (8, 8117030), (10, 6493624), (16, 4058515), (20, 3246812), (40, 1623406), (80, 811703)]