680890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:222

約数の個数: 32

約数和(自身を含む): 1430784

約数和(自身を除く): 749894

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 137, 142, 274, 355, 497, 685, 710, 959, 994, 1370, 1918, 2485, 4795, 4970, 9590, 9727, 19454, 48635, 68089, 97270, 136178, 340445, 680890]

約数ペア:

[(1, 680890), (2, 340445), (5, 136178), (7, 97270), (10, 68089), (14, 48635), (35, 19454), (70, 9727), (71, 9590), (137, 4970), (142, 4795), (274, 2485), (355, 1918), (497, 1370), (685, 994), (710, 959)]