72818440

素因数分解:

$2^3\times 5^1\times {\mathrm{1820461}}^1$

素因数の和:1820472

約数の個数: 16

約数和(自身を含む): 163841580

約数和(自身を除く): 91023140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1820461, 3640922, 7281844, 9102305, 14563688, 18204610, 36409220, 72818440]

約数ペア:

[(1, 72818440), (2, 36409220), (4, 18204610), (5, 14563688), (8, 9102305), (10, 7281844), (20, 3640922), (40, 1820461)]