81715205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4969}}^1$

素因数の和:5021

約数の個数: 32

約数和(自身を含む): 120234240

約数和(自身を除く): 38519035

約数列:

[1, 5, 11, 13, 23, 55, 65, 115, 143, 253, 299, 715, 1265, 1495, 3289, 4969, 16445, 24845, 54659, 64597, 114287, 273295, 322985, 571435, 710567, 1257157, 1485731, 3552835, 6285785, 7428655, 16343041, 81715205]

約数ペア:

[(1, 81715205), (5, 16343041), (11, 7428655), (13, 6285785), (23, 3552835), (55, 1485731), (65, 1257157), (115, 710567), (143, 571435), (253, 322985), (299, 273295), (715, 114287), (1265, 64597), (1495, 54659), (3289, 24845), (4969, 16445)]