171881515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{433}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 230985216

約数和(自身を除く): 59103701

約数列:

[1, 5, 13, 31, 65, 155, 197, 403, 433, 985, 2015, 2165, 2561, 5629, 6107, 12805, 13423, 28145, 30535, 67115, 79391, 85301, 174499, 396955, 426505, 872495, 1108913, 2644331, 5544565, 13221655, 34376303, 171881515]

約数ペア:

[(1, 171881515), (5, 34376303), (13, 13221655), (31, 5544565), (65, 2644331), (155, 1108913), (197, 872495), (403, 426505), (433, 396955), (985, 174499), (2015, 85301), (2165, 79391), (2561, 67115), (5629, 30535), (6107, 28145), (12805, 13423)]