72218020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{515843}}^1$

素因数の和:515859

約数の個数: 24

約数和(自身を含む): 173323584

約数和(自身を除く): 101105564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 515843, 1031686, 2063372, 2579215, 3610901, 5158430, 7221802, 10316860, 14443604, 18054505, 36109010, 72218020]

約数ペア:

[(1, 72218020), (2, 36109010), (4, 18054505), (5, 14443604), (7, 10316860), (10, 7221802), (14, 5158430), (20, 3610901), (28, 2579215), (35, 2063372), (70, 1031686), (140, 515843)]