64002020

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{743}}^1$

素因数の和:884

約数の個数: 48

約数和(自身を含む): 138741120

約数和(自身を除く): 74739100

約数列:

[1, 2, 4, 5, 10, 20, 59, 73, 118, 146, 236, 292, 295, 365, 590, 730, 743, 1180, 1460, 1486, 2972, 3715, 4307, 7430, 8614, 14860, 17228, 21535, 43070, 43837, 54239, 86140, 87674, 108478, 175348, 216956, 219185, 271195, 438370, 542390, 876740, 1084780, 3200101, 6400202, 12800404, 16000505, 32001010, 64002020]

約数ペア:

[(1, 64002020), (2, 32001010), (4, 16000505), (5, 12800404), (10, 6400202), (20, 3200101), (59, 1084780), (73, 876740), (118, 542390), (146, 438370), (236, 271195), (292, 219185), (295, 216956), (365, 175348), (590, 108478), (730, 87674), (743, 86140), (1180, 54239), (1460, 43837), (1486, 43070), (2972, 21535), (3715, 17228), (4307, 14860), (7430, 8614)]