127900215

素因数分解:

$3^4\times 5^1\times {\mathrm{315803}}^1$

素因数の和:315820

約数の個数: 20

約数和(自身を含む): 229273704

約数和(自身を除く): 101373489

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 315803, 947409, 1579015, 2842227, 4737045, 8526681, 14211135, 25580043, 42633405, 127900215]

約数ペア:

[(1, 127900215), (3, 42633405), (5, 25580043), (9, 14211135), (15, 8526681), (27, 4737045), (45, 2842227), (81, 1579015), (135, 947409), (405, 315803)]