28812485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 39137280

約数和(自身を除く): 10324795

約数列:

[1, 5, 13, 31, 65, 79, 155, 181, 395, 403, 905, 1027, 2015, 2353, 2449, 5135, 5611, 11765, 12245, 14299, 28055, 31837, 71495, 72943, 159185, 185887, 364715, 443269, 929435, 2216345, 5762497, 28812485]

約数ペア:

[(1, 28812485), (5, 5762497), (13, 2216345), (31, 929435), (65, 443269), (79, 364715), (155, 185887), (181, 159185), (395, 72943), (403, 71495), (905, 31837), (1027, 28055), (2015, 14299), (2353, 12245), (2449, 11765), (5135, 5611)]