72378160

素因数分解:

$2^4\times 5^1\times {\mathrm{904727}}^1$

素因数の和:904740

約数の個数: 20

約数和(自身を含む): 168279408

約数和(自身を除く): 95901248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 904727, 1809454, 3618908, 4523635, 7237816, 9047270, 14475632, 18094540, 36189080, 72378160]

約数ペア:

[(1, 72378160), (2, 36189080), (4, 18094540), (5, 14475632), (8, 9047270), (10, 7237816), (16, 4523635), (20, 3618908), (40, 1809454), (80, 904727)]