664963990

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{19927}}^1$

素因数の和:20052

約数の個数: 32

約数和(自身を含む): 1239681024

約数和(自身を除く): 574717034

約数列:

[1, 2, 5, 10, 47, 71, 94, 142, 235, 355, 470, 710, 3337, 6674, 16685, 19927, 33370, 39854, 99635, 199270, 936569, 1414817, 1873138, 2829634, 4682845, 7074085, 9365690, 14148170, 66496399, 132992798, 332481995, 664963990]

約数ペア:

[(1, 664963990), (2, 332481995), (5, 132992798), (10, 66496399), (47, 14148170), (71, 9365690), (94, 7074085), (142, 4682845), (235, 2829634), (355, 1873138), (470, 1414817), (710, 936569), (3337, 199270), (6674, 99635), (16685, 39854), (19927, 33370)]