2019420560

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{615677}}^1$

素因数の和:615731

約数の個数: 40

約数和(自身を含む): 4809676536

約数和(自身を除く): 2790255976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 615677, 1231354, 2462708, 3078385, 4925416, 6156770, 9850832, 12313540, 24627080, 25242757, 49254160, 50485514, 100971028, 126213785, 201942056, 252427570, 403884112, 504855140, 1009710280, 2019420560]

約数ペア:

[(1, 2019420560), (2, 1009710280), (4, 504855140), (5, 403884112), (8, 252427570), (10, 201942056), (16, 126213785), (20, 100971028), (40, 50485514), (41, 49254160), (80, 25242757), (82, 24627080), (164, 12313540), (205, 9850832), (328, 6156770), (410, 4925416), (656, 3078385), (820, 2462708), (1640, 1231354), (3280, 615677)]