81938500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{571}}^1$

素因数の和:638

約数の個数: 96

約数和(自身を含む): 209873664

約数和(自身を除く): 127935164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 50, 70, 82, 100, 125, 140, 164, 175, 205, 250, 287, 350, 410, 500, 571, 574, 700, 820, 875, 1025, 1142, 1148, 1435, 1750, 2050, 2284, 2855, 2870, 3500, 3997, 4100, 5125, 5710, 5740, 7175, 7994, 10250, 11420, 14275, 14350, 15988, 19985, 20500, 23411, 28550, 28700, 35875, 39970, 46822, 57100, 71375, 71750, 79940, 93644, 99925, 117055, 142750, 143500, 163877, 199850, 234110, 285500, 327754, 399700, 468220, 499625, 585275, 655508, 819385, 999250, 1170550, 1638770, 1998500, 2341100, 2926375, 3277540, 4096925, 5852750, 8193850, 11705500, 16387700, 20484625, 40969250, 81938500]

約数ペア:

[(1, 81938500), (2, 40969250), (4, 20484625), (5, 16387700), (7, 11705500), (10, 8193850), (14, 5852750), (20, 4096925), (25, 3277540), (28, 2926375), (35, 2341100), (41, 1998500), (50, 1638770), (70, 1170550), (82, 999250), (100, 819385), (125, 655508), (140, 585275), (164, 499625), (175, 468220), (205, 399700), (250, 327754), (287, 285500), (350, 234110), (410, 199850), (500, 163877), (571, 143500), (574, 142750), (700, 117055), (820, 99925), (875, 93644), (1025, 79940), (1142, 71750), (1148, 71375), (1435, 57100), (1750, 46822), (2050, 39970), (2284, 35875), (2855, 28700), (2870, 28550), (3500, 23411), (3997, 20500), (4100, 19985), (5125, 15988), (5710, 14350), (5740, 14275), (7175, 11420), (7994, 10250)]