640622

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:211

約数の個数: 16

約数和(自身を含む): 1004400

約数和(自身を除く): 363778

約数列:

[1, 2, 59, 61, 89, 118, 122, 178, 3599, 5251, 5429, 7198, 10502, 10858, 320311, 640622]

約数ペア:

[(1, 640622), (2, 320311), (59, 10858), (61, 10502), (89, 7198), (118, 5429), (122, 5251), (178, 3599)]