20548651875

素因数分解:

$3^1\times 5^4\times {\mathrm{43}}^1\times {\mathrm{281}}^1\times {\mathrm{907}}^1$

素因数の和:1254

約数の個数: 80

約数和(自身を含む): 35196433536

約数和(自身を除く): 14647781661

約数列:

[1, 3, 5, 15, 25, 43, 75, 125, 129, 215, 281, 375, 625, 645, 843, 907, 1075, 1405, 1875, 2721, 3225, 4215, 4535, 5375, 7025, 12083, 13605, 16125, 21075, 22675, 26875, 35125, 36249, 39001, 60415, 68025, 80625, 105375, 113375, 117003, 175625, 181245, 195005, 254867, 302075, 340125, 526875, 566875, 585015, 764601, 906225, 975025, 1274335, 1510375, 1700625, 2925075, 3823005, 4531125, 4875125, 6371675, 7551875, 10959281, 14625375, 19115025, 22655625, 24375625, 31858375, 32877843, 54796405, 73126875, 95575125, 159291875, 164389215, 273982025, 477875625, 821946075, 1369910125, 4109730375, 6849550625, 20548651875]

約数ペア:

[(1, 20548651875), (3, 6849550625), (5, 4109730375), (15, 1369910125), (25, 821946075), (43, 477875625), (75, 273982025), (125, 164389215), (129, 159291875), (215, 95575125), (281, 73126875), (375, 54796405), (625, 32877843), (645, 31858375), (843, 24375625), (907, 22655625), (1075, 19115025), (1405, 14625375), (1875, 10959281), (2721, 7551875), (3225, 6371675), (4215, 4875125), (4535, 4531125), (5375, 3823005), (7025, 2925075), (12083, 1700625), (13605, 1510375), (16125, 1274335), (21075, 975025), (22675, 906225), (26875, 764601), (35125, 585015), (36249, 566875), (39001, 526875), (60415, 340125), (68025, 302075), (80625, 254867), (105375, 195005), (113375, 181245), (117003, 175625)]