19902710

素因数分解:

$2^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{3011}}^1$

素因数の和:3679

約数の個数: 16

約数和(自身を含む): 35890992

約数和(自身を除く): 15988282

約数列:

[1, 2, 5, 10, 661, 1322, 3011, 3305, 6022, 6610, 15055, 30110, 1990271, 3980542, 9951355, 19902710]

約数ペア:

[(1, 19902710), (2, 9951355), (5, 3980542), (10, 1990271), (661, 30110), (1322, 15055), (3011, 6610), (3305, 6022)]