90910100

素因数分解:

$2^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{9001}}^1$

素因数の和:9116

約数の個数: 36

約数和(自身を含む): 199250268

約数和(自身を除く): 108340168

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 202, 404, 505, 1010, 2020, 2525, 5050, 9001, 10100, 18002, 36004, 45005, 90010, 180020, 225025, 450050, 900100, 909101, 1818202, 3636404, 4545505, 9091010, 18182020, 22727525, 45455050, 90910100]

約数ペア:

[(1, 90910100), (2, 45455050), (4, 22727525), (5, 18182020), (10, 9091010), (20, 4545505), (25, 3636404), (50, 1818202), (100, 909101), (101, 900100), (202, 450050), (404, 225025), (505, 180020), (1010, 90010), (2020, 45005), (2525, 36004), (5050, 18002), (9001, 10100)]