86441720

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{20981}}^1$

素因数の和:21095

約数の個数: 32

約数和(自身を含む): 196391520

約数和(自身を除く): 109949800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 20981, 41962, 83924, 104905, 167848, 209810, 419620, 839240, 2161043, 4322086, 8644172, 10805215, 17288344, 21610430, 43220860, 86441720]

約数ペア:

[(1, 86441720), (2, 43220860), (4, 21610430), (5, 17288344), (8, 10805215), (10, 8644172), (20, 4322086), (40, 2161043), (103, 839240), (206, 419620), (412, 209810), (515, 167848), (824, 104905), (1030, 83924), (2060, 41962), (4120, 20981)]