400634

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1$

素因数の和:845

約数の個数: 16

約数和(自身を含む): 682080

約数和(自身を除く): 281446

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 811, 1622, 10543, 15409, 21086, 30818, 200317, 400634]

約数ペア:

[(1, 400634), (2, 200317), (13, 30818), (19, 21086), (26, 15409), (38, 10543), (247, 1622), (494, 811)]