12874000

素因数分解:

$2^4\times 5^3\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:221

約数の個数: 80

約数和(自身を含む): 32091696

約数和(自身を除く): 19217696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 125, 157, 164, 200, 205, 250, 314, 328, 400, 410, 500, 628, 656, 785, 820, 1000, 1025, 1256, 1570, 1640, 2000, 2050, 2512, 3140, 3280, 3925, 4100, 5125, 6280, 6437, 7850, 8200, 10250, 12560, 12874, 15700, 16400, 19625, 20500, 25748, 31400, 32185, 39250, 41000, 51496, 62800, 64370, 78500, 82000, 102992, 128740, 157000, 160925, 257480, 314000, 321850, 514960, 643700, 804625, 1287400, 1609250, 2574800, 3218500, 6437000, 12874000]

約数ペア:

[(1, 12874000), (2, 6437000), (4, 3218500), (5, 2574800), (8, 1609250), (10, 1287400), (16, 804625), (20, 643700), (25, 514960), (40, 321850), (41, 314000), (50, 257480), (80, 160925), (82, 157000), (100, 128740), (125, 102992), (157, 82000), (164, 78500), (200, 64370), (205, 62800), (250, 51496), (314, 41000), (328, 39250), (400, 32185), (410, 31400), (500, 25748), (628, 20500), (656, 19625), (785, 16400), (820, 15700), (1000, 12874), (1025, 12560), (1256, 10250), (1570, 8200), (1640, 7850), (2000, 6437), (2050, 6280), (2512, 5125), (3140, 4100), (3280, 3925)]