81145460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{3581}}^1$

素因数の和:3704

約数の個数: 48

約数和(自身を含む): 187754112

約数和(自身を除く): 106608652

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 1030, 1133, 2060, 2266, 3581, 4532, 5665, 7162, 11330, 14324, 17905, 22660, 35810, 39391, 71620, 78782, 157564, 196955, 368843, 393910, 737686, 787820, 1475372, 1844215, 3688430, 4057273, 7376860, 8114546, 16229092, 20286365, 40572730, 81145460]

約数ペア:

[(1, 81145460), (2, 40572730), (4, 20286365), (5, 16229092), (10, 8114546), (11, 7376860), (20, 4057273), (22, 3688430), (44, 1844215), (55, 1475372), (103, 787820), (110, 737686), (206, 393910), (220, 368843), (412, 196955), (515, 157564), (1030, 78782), (1133, 71620), (2060, 39391), (2266, 35810), (3581, 22660), (4532, 17905), (5665, 14324), (7162, 11330)]