72851560

素因数分解:

$2^3\times 5^1\times {\mathrm{1821289}}^1$

素因数の和:1821300

約数の個数: 16

約数和(自身を含む): 163916100

約数和(自身を除く): 91064540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1821289, 3642578, 7285156, 9106445, 14570312, 18212890, 36425780, 72851560]

約数ペア:

[(1, 72851560), (2, 36425780), (4, 18212890), (5, 14570312), (8, 9106445), (10, 7285156), (20, 3642578), (40, 1821289)]