28231875

素因数分解:

$3^3\times 5^4\times 7^1\times {\mathrm{239}}^1$

素因数の和:275

約数の個数: 80

約数和(自身を含む): 59980800

約数和(自身を除く): 31748925

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 125, 135, 175, 189, 225, 239, 315, 375, 525, 625, 675, 717, 875, 945, 1125, 1195, 1575, 1673, 1875, 2151, 2625, 3375, 3585, 4375, 4725, 5019, 5625, 5975, 6453, 7875, 8365, 10755, 13125, 15057, 16875, 17925, 23625, 25095, 29875, 32265, 39375, 41825, 45171, 53775, 75285, 89625, 118125, 125475, 149375, 161325, 209125, 225855, 268875, 376425, 448125, 627375, 806625, 1045625, 1129275, 1344375, 1882125, 3136875, 4033125, 5646375, 9410625, 28231875]

約数ペア:

[(1, 28231875), (3, 9410625), (5, 5646375), (7, 4033125), (9, 3136875), (15, 1882125), (21, 1344375), (25, 1129275), (27, 1045625), (35, 806625), (45, 627375), (63, 448125), (75, 376425), (105, 268875), (125, 225855), (135, 209125), (175, 161325), (189, 149375), (225, 125475), (239, 118125), (315, 89625), (375, 75285), (525, 53775), (625, 45171), (675, 41825), (717, 39375), (875, 32265), (945, 29875), (1125, 25095), (1195, 23625), (1575, 17925), (1673, 16875), (1875, 15057), (2151, 13125), (2625, 10755), (3375, 8365), (3585, 7875), (4375, 6453), (4725, 5975), (5019, 5625)]