1260857500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:801

約数の個数: 120

約数和(自身を含む): 3184855520

約数和(自身を除く): 1923998020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 109, 125, 140, 175, 218, 250, 350, 436, 500, 545, 625, 661, 700, 763, 875, 1090, 1250, 1322, 1526, 1750, 2180, 2500, 2644, 2725, 3052, 3305, 3500, 3815, 4375, 4627, 5450, 6610, 7630, 8750, 9254, 10900, 13220, 13625, 15260, 16525, 17500, 18508, 19075, 23135, 27250, 33050, 38150, 46270, 54500, 66100, 68125, 72049, 76300, 82625, 92540, 95375, 115675, 136250, 144098, 165250, 190750, 231350, 272500, 288196, 330500, 360245, 381500, 413125, 462700, 476875, 504343, 578375, 720490, 826250, 953750, 1008686, 1156750, 1440980, 1652500, 1801225, 1907500, 2017372, 2313500, 2521715, 2891875, 3602450, 5043430, 5783750, 7204900, 9006125, 10086860, 11567500, 12608575, 18012250, 25217150, 36024500, 45030625, 50434300, 63042875, 90061250, 126085750, 180122500, 252171500, 315214375, 630428750, 1260857500]

約数ペア:

[(1, 1260857500), (2, 630428750), (4, 315214375), (5, 252171500), (7, 180122500), (10, 126085750), (14, 90061250), (20, 63042875), (25, 50434300), (28, 45030625), (35, 36024500), (50, 25217150), (70, 18012250), (100, 12608575), (109, 11567500), (125, 10086860), (140, 9006125), (175, 7204900), (218, 5783750), (250, 5043430), (350, 3602450), (436, 2891875), (500, 2521715), (545, 2313500), (625, 2017372), (661, 1907500), (700, 1801225), (763, 1652500), (875, 1440980), (1090, 1156750), (1250, 1008686), (1322, 953750), (1526, 826250), (1750, 720490), (2180, 578375), (2500, 504343), (2644, 476875), (2725, 462700), (3052, 413125), (3305, 381500), (3500, 360245), (3815, 330500), (4375, 288196), (4627, 272500), (5450, 231350), (6610, 190750), (7630, 165250), (8750, 144098), (9254, 136250), (10900, 115675), (13220, 95375), (13625, 92540), (15260, 82625), (16525, 76300), (17500, 72049), (18508, 68125), (19075, 66100), (23135, 54500), (27250, 46270), (33050, 38150)]