61561215

素因数分解:

$3^4\times 5^1\times {\mathrm{152003}}^1$

素因数の和:152020

約数の個数: 20

約数和(自身を含む): 110354904

約数和(自身を除く): 48793689

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 152003, 456009, 760015, 1368027, 2280045, 4104081, 6840135, 12312243, 20520405, 61561215]

約数ペア:

[(1, 61561215), (3, 20520405), (5, 12312243), (9, 6840135), (15, 4104081), (27, 2280045), (45, 1368027), (81, 760015), (135, 456009), (405, 152003)]