81631025

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1193}}^1$

素因数の和:1250

約数の個数: 48

約数和(自身を含む): 127920384

約数和(自身を除く): 46289359

約数列:

[1, 5, 7, 17, 23, 25, 35, 85, 115, 119, 161, 175, 391, 425, 575, 595, 805, 1193, 1955, 2737, 2975, 4025, 5965, 8351, 9775, 13685, 20281, 27439, 29825, 41755, 68425, 101405, 137195, 141967, 192073, 208775, 466463, 507025, 685975, 709835, 960365, 2332315, 3265241, 3549175, 4801825, 11661575, 16326205, 81631025]

約数ペア:

[(1, 81631025), (5, 16326205), (7, 11661575), (17, 4801825), (23, 3549175), (25, 3265241), (35, 2332315), (85, 960365), (115, 709835), (119, 685975), (161, 507025), (175, 466463), (391, 208775), (425, 192073), (575, 141967), (595, 137195), (805, 101405), (1193, 68425), (1955, 41755), (2737, 29825), (2975, 27439), (4025, 20281), (5965, 13685), (8351, 9775)]