278364730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{56009}}^1$

素因数の和:56094

約数の個数: 32

約数和(自身を含む): 580711680

約数和(自身を除く): 302346950

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 4970, 56009, 112018, 280045, 392063, 560090, 784126, 1960315, 3920630, 3976639, 7953278, 19883195, 27836473, 39766390, 55672946, 139182365, 278364730]

約数ペア:

[(1, 278364730), (2, 139182365), (5, 55672946), (7, 39766390), (10, 27836473), (14, 19883195), (35, 7953278), (70, 3976639), (71, 3920630), (142, 1960315), (355, 784126), (497, 560090), (710, 392063), (994, 280045), (2485, 112018), (4970, 56009)]