1978860375

素因数分解:

$3^4\times 5^3\times {\mathrm{195443}}^1$

素因数の和:195470

約数の個数: 40

約数和(自身を含む): 3689200944

約数和(自身を除く): 1710340569

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 375, 405, 675, 1125, 2025, 3375, 10125, 195443, 586329, 977215, 1758987, 2931645, 4886075, 5276961, 8794935, 14658225, 15830883, 24430375, 26384805, 43974675, 73291125, 79154415, 131924025, 219873375, 395772075, 659620125, 1978860375]

約数ペア:

[(1, 1978860375), (3, 659620125), (5, 395772075), (9, 219873375), (15, 131924025), (25, 79154415), (27, 73291125), (45, 43974675), (75, 26384805), (81, 24430375), (125, 15830883), (135, 14658225), (225, 8794935), (375, 5276961), (405, 4886075), (675, 2931645), (1125, 1758987), (2025, 977215), (3375, 586329), (10125, 195443)]