80660000

素因数分解:

$2^5\times 5^4\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:176

約数の個数: 120

約数和(自身を含む): 205668540

約数和(自身を除く): 125008540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 50, 74, 80, 100, 109, 125, 148, 160, 185, 200, 218, 250, 296, 370, 400, 436, 500, 545, 592, 625, 740, 800, 872, 925, 1000, 1090, 1184, 1250, 1480, 1744, 1850, 2000, 2180, 2500, 2725, 2960, 3488, 3700, 4000, 4033, 4360, 4625, 5000, 5450, 5920, 7400, 8066, 8720, 9250, 10000, 10900, 13625, 14800, 16132, 17440, 18500, 20000, 20165, 21800, 23125, 27250, 29600, 32264, 37000, 40330, 43600, 46250, 54500, 64528, 68125, 74000, 80660, 87200, 92500, 100825, 109000, 129056, 136250, 148000, 161320, 185000, 201650, 218000, 272500, 322640, 370000, 403300, 436000, 504125, 545000, 645280, 740000, 806600, 1008250, 1090000, 1613200, 2016500, 2180000, 2520625, 3226400, 4033000, 5041250, 8066000, 10082500, 16132000, 20165000, 40330000, 80660000]

約数ペア:

[(1, 80660000), (2, 40330000), (4, 20165000), (5, 16132000), (8, 10082500), (10, 8066000), (16, 5041250), (20, 4033000), (25, 3226400), (32, 2520625), (37, 2180000), (40, 2016500), (50, 1613200), (74, 1090000), (80, 1008250), (100, 806600), (109, 740000), (125, 645280), (148, 545000), (160, 504125), (185, 436000), (200, 403300), (218, 370000), (250, 322640), (296, 272500), (370, 218000), (400, 201650), (436, 185000), (500, 161320), (545, 148000), (592, 136250), (625, 129056), (740, 109000), (800, 100825), (872, 92500), (925, 87200), (1000, 80660), (1090, 74000), (1184, 68125), (1250, 64528), (1480, 54500), (1744, 46250), (1850, 43600), (2000, 40330), (2180, 37000), (2500, 32264), (2725, 29600), (2960, 27250), (3488, 23125), (3700, 21800), (4000, 20165), (4033, 20000), (4360, 18500), (4625, 17440), (5000, 16132), (5450, 14800), (5920, 13625), (7400, 10900), (8066, 10000), (8720, 9250)]