89920010

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{2081}}^1$

素因数の和:2266

約数の個数: 32

約数和(自身を含む): 168642000

約数和(自身を除く): 78721990

約数列:

[1, 2, 5, 10, 29, 58, 145, 149, 290, 298, 745, 1490, 2081, 4162, 4321, 8642, 10405, 20810, 21605, 43210, 60349, 120698, 301745, 310069, 603490, 620138, 1550345, 3100690, 8992001, 17984002, 44960005, 89920010]

約数ペア:

[(1, 89920010), (2, 44960005), (5, 17984002), (10, 8992001), (29, 3100690), (58, 1550345), (145, 620138), (149, 603490), (290, 310069), (298, 301745), (745, 120698), (1490, 60349), (2081, 43210), (4162, 21605), (4321, 20810), (8642, 10405)]