26578125

素因数分解:

$3^5\times 5^6\times 7^1$

素因数の和:52

約数の個数: 84

約数和(自身を含む): 56874272

約数和(自身を除く): 30296147

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 81, 105, 125, 135, 175, 189, 225, 243, 315, 375, 405, 525, 567, 625, 675, 875, 945, 1125, 1215, 1575, 1701, 1875, 2025, 2625, 2835, 3125, 3375, 4375, 4725, 5625, 6075, 7875, 8505, 9375, 10125, 13125, 14175, 15625, 16875, 21875, 23625, 28125, 30375, 39375, 42525, 46875, 50625, 65625, 70875, 84375, 109375, 118125, 140625, 151875, 196875, 212625, 253125, 328125, 354375, 421875, 590625, 759375, 984375, 1063125, 1265625, 1771875, 2953125, 3796875, 5315625, 8859375, 26578125]

約数ペア:

[(1, 26578125), (3, 8859375), (5, 5315625), (7, 3796875), (9, 2953125), (15, 1771875), (21, 1265625), (25, 1063125), (27, 984375), (35, 759375), (45, 590625), (63, 421875), (75, 354375), (81, 328125), (105, 253125), (125, 212625), (135, 196875), (175, 151875), (189, 140625), (225, 118125), (243, 109375), (315, 84375), (375, 70875), (405, 65625), (525, 50625), (567, 46875), (625, 42525), (675, 39375), (875, 30375), (945, 28125), (1125, 23625), (1215, 21875), (1575, 16875), (1701, 15625), (1875, 14175), (2025, 13125), (2625, 10125), (2835, 9375), (3125, 8505), (3375, 7875), (4375, 6075), (4725, 5625)]