72661825

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:246

約数の個数: 36

約数和(自身を含む): 97644420

約数和(自身を除く): 24982595

約数列:

[1, 5, 17, 25, 85, 89, 113, 289, 425, 445, 565, 1445, 1513, 1921, 2225, 2825, 7225, 7565, 9605, 10057, 25721, 32657, 37825, 48025, 50285, 128605, 163285, 170969, 251425, 643025, 816425, 854845, 2906473, 4274225, 14532365, 72661825]

約数ペア:

[(1, 72661825), (5, 14532365), (17, 4274225), (25, 2906473), (85, 854845), (89, 816425), (113, 643025), (289, 251425), (425, 170969), (445, 163285), (565, 128605), (1445, 50285), (1513, 48025), (1921, 37825), (2225, 32657), (2825, 25721), (7225, 10057), (7565, 9605)]