6437000

素因数分解:

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

素因数の和:219

約数の個数: 64

約数和(自身を含む): 15528240

約数和(自身を除く): 9091240

約数列:

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

約数ペア:

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