664846478

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{773}}^1$

素因数の和:1028

約数の個数: 32

約数和(自身を含む): 1043339616

約数和(自身を除く): 378493138

約数列:

[1, 2, 43, 73, 86, 137, 146, 274, 773, 1546, 3139, 5891, 6278, 10001, 11782, 20002, 33239, 56429, 66478, 105901, 112858, 211802, 430043, 860086, 2426447, 4553743, 4852894, 7730773, 9107486, 15461546, 332423239, 664846478]

約数ペア:

[(1, 664846478), (2, 332423239), (43, 15461546), (73, 9107486), (86, 7730773), (137, 4852894), (146, 4553743), (274, 2426447), (773, 860086), (1546, 430043), (3139, 211802), (5891, 112858), (6278, 105901), (10001, 66478), (11782, 56429), (20002, 33239)]