664271505

素因数分解:

$3^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{23029}}^1$

素因数の和:23681

約数の個数: 24

約数和(自身を含む): 1153250280

約数和(自身を除く): 488978775

約数列:

[1, 3, 5, 9, 15, 45, 641, 1923, 3205, 5769, 9615, 23029, 28845, 69087, 115145, 207261, 345435, 1036305, 14761589, 44284767, 73807945, 132854301, 221423835, 664271505]

約数ペア:

[(1, 664271505), (3, 221423835), (5, 132854301), (9, 73807945), (15, 44284767), (45, 14761589), (641, 1036305), (1923, 345435), (3205, 207261), (5769, 115145), (9615, 69087), (23029, 28845)]