639806825878

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{353}}^1\times {\mathrm{680873}}^1$

素因数の和:681261

約数の個数: 32

約数和(自身を含む): 1058601107232

約数和(自身を除く): 418794281354

約数列:

[1, 2, 11, 22, 121, 242, 353, 706, 1331, 2662, 3883, 7766, 42713, 85426, 469843, 680873, 939686, 1361746, 7489603, 14979206, 82385633, 164771266, 240348169, 480696338, 906241963, 1812483926, 2643829859, 5287659718, 29082128449, 58164256898, 319903412939, 639806825878]

約数ペア:

[(1, 639806825878), (2, 319903412939), (11, 58164256898), (22, 29082128449), (121, 5287659718), (242, 2643829859), (353, 1812483926), (706, 906241963), (1331, 480696338), (2662, 240348169), (3883, 164771266), (7766, 82385633), (42713, 14979206), (85426, 7489603), (469843, 1361746), (680873, 939686)]