128534215

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 164376576

約数和(自身を除く): 35842361

約数列:

[1, 5, 31, 83, 97, 103, 155, 415, 485, 515, 2573, 3007, 3193, 8051, 8549, 9991, 12865, 15035, 15965, 40255, 42745, 49955, 249581, 265019, 309721, 829253, 1247905, 1325095, 1548605, 4146265, 25706843, 128534215]

約数ペア:

[(1, 128534215), (5, 25706843), (31, 4146265), (83, 1548605), (97, 1325095), (103, 1247905), (155, 829253), (415, 309721), (485, 265019), (515, 249581), (2573, 49955), (3007, 42745), (3193, 40255), (8051, 15965), (8549, 15035), (9991, 12865)]