87541580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8807}}^1$

素因数の和:8894

約数の個数: 48

約数和(自身を含む): 213083136

約数和(自身を除く): 125541556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 8807, 9940, 17614, 35228, 44035, 61649, 88070, 123298, 176140, 246596, 308245, 616490, 625297, 1232980, 1250594, 2501188, 3126485, 4377079, 6252970, 8754158, 12505940, 17508316, 21885395, 43770790, 87541580]

約数ペア:

[(1, 87541580), (2, 43770790), (4, 21885395), (5, 17508316), (7, 12505940), (10, 8754158), (14, 6252970), (20, 4377079), (28, 3126485), (35, 2501188), (70, 1250594), (71, 1232980), (140, 625297), (142, 616490), (284, 308245), (355, 246596), (497, 176140), (710, 123298), (994, 88070), (1420, 61649), (1988, 44035), (2485, 35228), (4970, 17614), (8807, 9940)]