656884020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{842159}}^1$

素因数の和:842184

約数の個数: 48

約数和(自身を含む): 1980760320

約数和(自身を除く): 1323876300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 842159, 1684318, 2526477, 3368636, 4210795, 5052954, 8421590, 10105908, 10948067, 12632385, 16843180, 21896134, 25264770, 32844201, 43792268, 50529540, 54740335, 65688402, 109480670, 131376804, 164221005, 218961340, 328442010, 656884020]

約数ペア:

[(1, 656884020), (2, 328442010), (3, 218961340), (4, 164221005), (5, 131376804), (6, 109480670), (10, 65688402), (12, 54740335), (13, 50529540), (15, 43792268), (20, 32844201), (26, 25264770), (30, 21896134), (39, 16843180), (52, 12632385), (60, 10948067), (65, 10105908), (78, 8421590), (130, 5052954), (156, 4210795), (195, 3368636), (260, 2526477), (390, 1684318), (780, 842159)]