28161745

素因数分解:

$5^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{367}}^1$

素因数の和:624

約数の個数: 16

約数和(自身を含む): 34444800

約数和(自身を除く): 6283055

約数列:

[1, 5, 103, 149, 367, 515, 745, 1835, 15347, 37801, 54683, 76735, 189005, 273415, 5632349, 28161745]

約数ペア:

[(1, 28161745), (5, 5632349), (103, 273415), (149, 189005), (367, 76735), (515, 54683), (745, 37801), (1835, 15347)]