20144080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2081}}^1$

素因数の和:2116

約数の個数: 60

約数和(自身を含む): 51504516

約数和(自身を除く): 31360436

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2081, 2420, 4162, 4840, 8324, 9680, 10405, 16648, 20810, 22891, 33296, 41620, 45782, 83240, 91564, 114455, 166480, 183128, 228910, 251801, 366256, 457820, 503602, 915640, 1007204, 1259005, 1831280, 2014408, 2518010, 4028816, 5036020, 10072040, 20144080]

約数ペア:

[(1, 20144080), (2, 10072040), (4, 5036020), (5, 4028816), (8, 2518010), (10, 2014408), (11, 1831280), (16, 1259005), (20, 1007204), (22, 915640), (40, 503602), (44, 457820), (55, 366256), (80, 251801), (88, 228910), (110, 183128), (121, 166480), (176, 114455), (220, 91564), (242, 83240), (440, 45782), (484, 41620), (605, 33296), (880, 22891), (968, 20810), (1210, 16648), (1936, 10405), (2081, 9680), (2420, 8324), (4162, 4840)]