166665455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{409}}^1$

素因数の和:695

約数の個数: 32

約数和(自身を含む): 226713600

約数和(自身を除く): 60048145

約数列:

[1, 5, 11, 31, 55, 155, 239, 341, 409, 1195, 1705, 2045, 2629, 4499, 7409, 12679, 13145, 22495, 37045, 63395, 81499, 97751, 139469, 407495, 488755, 697345, 1075261, 3030281, 5376305, 15151405, 33333091, 166665455]

約数ペア:

[(1, 166665455), (5, 33333091), (11, 15151405), (31, 5376305), (55, 3030281), (155, 1075261), (239, 697345), (341, 488755), (409, 407495), (1195, 139469), (1705, 97751), (2045, 81499), (2629, 63395), (4499, 37045), (7409, 22495), (12679, 13145)]