81549260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1049}}^1$

素因数の和:1107

約数の個数: 72

約数和(自身を含む): 193687200

約数和(自身を除く): 112137940

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 169, 230, 260, 299, 338, 460, 598, 676, 845, 1049, 1196, 1495, 1690, 2098, 2990, 3380, 3887, 4196, 5245, 5980, 7774, 10490, 13637, 15548, 19435, 20980, 24127, 27274, 38870, 48254, 54548, 68185, 77740, 96508, 120635, 136370, 177281, 241270, 272740, 313651, 354562, 482540, 627302, 709124, 886405, 1254604, 1568255, 1772810, 3136510, 3545620, 4077463, 6273020, 8154926, 16309852, 20387315, 40774630, 81549260]

約数ペア:

[(1, 81549260), (2, 40774630), (4, 20387315), (5, 16309852), (10, 8154926), (13, 6273020), (20, 4077463), (23, 3545620), (26, 3136510), (46, 1772810), (52, 1568255), (65, 1254604), (92, 886405), (115, 709124), (130, 627302), (169, 482540), (230, 354562), (260, 313651), (299, 272740), (338, 241270), (460, 177281), (598, 136370), (676, 120635), (845, 96508), (1049, 77740), (1196, 68185), (1495, 54548), (1690, 48254), (2098, 38870), (2990, 27274), (3380, 24127), (3887, 20980), (4196, 19435), (5245, 15548), (5980, 13637), (7774, 10490)]