67840990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{138451}}^1$

素因数の和:138472

約数の個数: 24

約数和(自身を含む): 142051752

約数和(自身を除く): 74210762

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 138451, 276902, 692255, 969157, 1384510, 1938314, 4845785, 6784099, 9691570, 13568198, 33920495, 67840990]

約数ペア:

[(1, 67840990), (2, 33920495), (5, 13568198), (7, 9691570), (10, 6784099), (14, 4845785), (35, 1938314), (49, 1384510), (70, 969157), (98, 692255), (245, 276902), (490, 138451)]