268501825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{811}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 380600640

約数和(自身を除く): 112098815

約数列:

[1, 5, 17, 19, 25, 41, 85, 95, 205, 323, 425, 475, 697, 779, 811, 1025, 1615, 3485, 3895, 4055, 8075, 13243, 13787, 15409, 17425, 19475, 20275, 33251, 66215, 68935, 77045, 166255, 261953, 331075, 344675, 385225, 565267, 631769, 831275, 1309765, 2826335, 3158845, 6548825, 10740073, 14131675, 15794225, 53700365, 268501825]

約数ペア:

[(1, 268501825), (5, 53700365), (17, 15794225), (19, 14131675), (25, 10740073), (41, 6548825), (85, 3158845), (95, 2826335), (205, 1309765), (323, 831275), (425, 631769), (475, 565267), (697, 385225), (779, 344675), (811, 331075), (1025, 261953), (1615, 166255), (3485, 77045), (3895, 68935), (4055, 66215), (8075, 33251), (13243, 20275), (13787, 19475), (15409, 17425)]