87443620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{2081}}^1$

素因数の和:2292

約数の個数: 48

約数和(自身を含む): 201470976

約数和(自身を除く): 114027356

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 191, 220, 382, 764, 955, 1910, 2081, 2101, 3820, 4162, 4202, 8324, 8404, 10405, 10505, 20810, 21010, 22891, 41620, 42020, 45782, 91564, 114455, 228910, 397471, 457820, 794942, 1589884, 1987355, 3974710, 4372181, 7949420, 8744362, 17488724, 21860905, 43721810, 87443620]

約数ペア:

[(1, 87443620), (2, 43721810), (4, 21860905), (5, 17488724), (10, 8744362), (11, 7949420), (20, 4372181), (22, 3974710), (44, 1987355), (55, 1589884), (110, 794942), (191, 457820), (220, 397471), (382, 228910), (764, 114455), (955, 91564), (1910, 45782), (2081, 42020), (2101, 41620), (3820, 22891), (4162, 21010), (4202, 20810), (8324, 10505), (8404, 10405)]