81487875

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{839}}^1$

素因数の和:901

約数の個数: 64

約数和(自身を含む): 159344640

約数和(自身を除く): 77856765

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 37, 75, 105, 111, 125, 175, 185, 259, 375, 525, 555, 777, 839, 875, 925, 1295, 2517, 2625, 2775, 3885, 4195, 4625, 5873, 6475, 12585, 13875, 17619, 19425, 20975, 29365, 31043, 32375, 62925, 88095, 93129, 97125, 104875, 146825, 155215, 217301, 314625, 440475, 465645, 651903, 734125, 776075, 1086505, 2202375, 2328225, 3259515, 3880375, 5432525, 11641125, 16297575, 27162625, 81487875]

約数ペア:

[(1, 81487875), (3, 27162625), (5, 16297575), (7, 11641125), (15, 5432525), (21, 3880375), (25, 3259515), (35, 2328225), (37, 2202375), (75, 1086505), (105, 776075), (111, 734125), (125, 651903), (175, 465645), (185, 440475), (259, 314625), (375, 217301), (525, 155215), (555, 146825), (777, 104875), (839, 97125), (875, 93129), (925, 88095), (1295, 62925), (2517, 32375), (2625, 31043), (2775, 29365), (3885, 20975), (4195, 19425), (4625, 17619), (5873, 13875), (6475, 12585)]