28420875

素因数分解:

$3^4\times 5^3\times 7^1\times {\mathrm{401}}^1$

素因数の和:435

約数の個数: 80

約数和(自身を含む): 60705216

約数和(自身を除く): 32284341

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 81, 105, 125, 135, 175, 189, 225, 315, 375, 401, 405, 525, 567, 675, 875, 945, 1125, 1203, 1575, 2005, 2025, 2625, 2807, 2835, 3375, 3609, 4725, 6015, 7875, 8421, 10025, 10125, 10827, 14035, 14175, 18045, 23625, 25263, 30075, 32481, 42105, 50125, 54135, 70175, 70875, 75789, 90225, 126315, 150375, 162405, 210525, 227367, 270675, 350875, 378945, 451125, 631575, 812025, 1052625, 1136835, 1353375, 1894725, 3157875, 4060125, 5684175, 9473625, 28420875]

約数ペア:

[(1, 28420875), (3, 9473625), (5, 5684175), (7, 4060125), (9, 3157875), (15, 1894725), (21, 1353375), (25, 1136835), (27, 1052625), (35, 812025), (45, 631575), (63, 451125), (75, 378945), (81, 350875), (105, 270675), (125, 227367), (135, 210525), (175, 162405), (189, 150375), (225, 126315), (315, 90225), (375, 75789), (401, 70875), (405, 70175), (525, 54135), (567, 50125), (675, 42105), (875, 32481), (945, 30075), (1125, 25263), (1203, 23625), (1575, 18045), (2005, 14175), (2025, 14035), (2625, 10827), (2807, 10125), (2835, 10025), (3375, 8421), (3609, 7875), (4725, 6015)]