80435900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{11329}}^1$

素因数の和:11414

約数の個数: 36

約数和(自身を含む): 177019920

約数和(自身を除く): 96584020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 3550, 7100, 11329, 22658, 45316, 56645, 113290, 226580, 283225, 566450, 804359, 1132900, 1608718, 3217436, 4021795, 8043590, 16087180, 20108975, 40217950, 80435900]

約数ペア:

[(1, 80435900), (2, 40217950), (4, 20108975), (5, 16087180), (10, 8043590), (20, 4021795), (25, 3217436), (50, 1608718), (71, 1132900), (100, 804359), (142, 566450), (284, 283225), (355, 226580), (710, 113290), (1420, 56645), (1775, 45316), (3550, 22658), (7100, 11329)]