212463025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 291075120

約数和(自身を除く): 78612095

約数列:

[1, 5, 17, 25, 41, 85, 89, 137, 205, 425, 445, 685, 697, 1025, 1513, 2225, 2329, 3425, 3485, 3649, 5617, 7565, 11645, 12193, 17425, 18245, 28085, 37825, 58225, 60965, 62033, 91225, 95489, 140425, 207281, 304825, 310165, 477445, 499913, 1036405, 1550825, 2387225, 2499565, 5182025, 8498521, 12497825, 42492605, 212463025]

約数ペア:

[(1, 212463025), (5, 42492605), (17, 12497825), (25, 8498521), (41, 5182025), (85, 2499565), (89, 2387225), (137, 1550825), (205, 1036405), (425, 499913), (445, 477445), (685, 310165), (697, 304825), (1025, 207281), (1513, 140425), (2225, 95489), (2329, 91225), (3425, 62033), (3485, 60965), (3649, 58225), (5617, 37825), (7565, 28085), (11645, 18245), (12193, 17425)]