131445820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{3301}}^1$

素因数の和:3502

約数の個数: 48

約数和(自身を含む): 302885856

約数和(自身を除く): 171440036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 724, 905, 1810, 1991, 3301, 3620, 3982, 6602, 7964, 9955, 13204, 16505, 19910, 33010, 36311, 39820, 66020, 72622, 145244, 181555, 363110, 597481, 726220, 1194962, 2389924, 2987405, 5974810, 6572291, 11949620, 13144582, 26289164, 32861455, 65722910, 131445820]

約数ペア:

[(1, 131445820), (2, 65722910), (4, 32861455), (5, 26289164), (10, 13144582), (11, 11949620), (20, 6572291), (22, 5974810), (44, 2987405), (55, 2389924), (110, 1194962), (181, 726220), (220, 597481), (362, 363110), (724, 181555), (905, 145244), (1810, 72622), (1991, 66020), (3301, 39820), (3620, 36311), (3982, 33010), (6602, 19910), (7964, 16505), (9955, 13204)]