1640356711

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{128969}}^1$

素因数の和:129078

約数の個数: 16

約数和(自身を含む): 1980979200

約数和(自身を除く): 340622489

約数列:

[1, 7, 23, 79, 161, 553, 1817, 12719, 128969, 902783, 2966287, 10188551, 20764009, 71319857, 234336673, 1640356711]

約数ペア:

[(1, 1640356711), (7, 234336673), (23, 71319857), (79, 20764009), (161, 10188551), (553, 2966287), (1817, 902783), (12719, 128969)]