61878225

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{20123}}^1$

素因数の和:20177

約数の個数: 24

約数和(自身を含む): 104805792

約数和(自身を除く): 42927567

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 205, 615, 1025, 3075, 20123, 60369, 100615, 301845, 503075, 825043, 1509225, 2475129, 4125215, 12375645, 20626075, 61878225]

約数ペア:

[(1, 61878225), (3, 20626075), (5, 12375645), (15, 4125215), (25, 2475129), (41, 1509225), (75, 825043), (123, 503075), (205, 301845), (615, 100615), (1025, 60369), (3075, 20123)]