72225680

素因数分解:

$2^4\times 5^1\times {\mathrm{902821}}^1$

素因数の和:902834

約数の個数: 20

約数和(自身を含む): 167924892

約数和(自身を除く): 95699212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 902821, 1805642, 3611284, 4514105, 7222568, 9028210, 14445136, 18056420, 36112840, 72225680]

約数ペア:

[(1, 72225680), (2, 36112840), (4, 18056420), (5, 14445136), (8, 9028210), (10, 7222568), (16, 4514105), (20, 3611284), (40, 1805642), (80, 902821)]