20804765

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{1381}}^1$

素因数の和:1540

約数の個数: 16

約数和(自身を含む): 26269056

約数和(自身を除く): 5464291

約数列:

[1, 5, 23, 115, 131, 655, 1381, 3013, 6905, 15065, 31763, 158815, 180911, 904555, 4160953, 20804765]

約数ペア:

[(1, 20804765), (5, 4160953), (23, 904555), (115, 180911), (131, 158815), (655, 31763), (1381, 15065), (3013, 6905)]