8041460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{809}}^1$

素因数の和:896

約数の個数: 48

約数和(自身を含む): 19595520

約数和(自身を除く): 11554060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 809, 994, 1420, 1618, 1988, 2485, 3236, 4045, 4970, 5663, 8090, 9940, 11326, 16180, 22652, 28315, 56630, 57439, 113260, 114878, 229756, 287195, 402073, 574390, 804146, 1148780, 1608292, 2010365, 4020730, 8041460]

約数ペア:

[(1, 8041460), (2, 4020730), (4, 2010365), (5, 1608292), (7, 1148780), (10, 804146), (14, 574390), (20, 402073), (28, 287195), (35, 229756), (70, 114878), (71, 113260), (140, 57439), (142, 56630), (284, 28315), (355, 22652), (497, 16180), (710, 11326), (809, 9940), (994, 8090), (1420, 5663), (1618, 4970), (1988, 4045), (2485, 3236)]