20000474

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{1259}}^1$

素因数の和:1334

約数の個数: 24

約数和(自身を含む): 33203520

約数和(自身を除く): 13203046

約数列:

[1, 2, 13, 26, 47, 94, 169, 338, 611, 1222, 1259, 2518, 7943, 15886, 16367, 32734, 59173, 118346, 212771, 425542, 769249, 1538498, 10000237, 20000474]

約数ペア:

[(1, 20000474), (2, 10000237), (13, 1538498), (26, 769249), (47, 425542), (94, 212771), (169, 118346), (338, 59173), (611, 32734), (1222, 16367), (1259, 15886), (2518, 7943)]