489181825

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 712454400

約数和(自身を除く): 223272575

約数列:

[1, 5, 11, 23, 25, 55, 79, 89, 115, 121, 253, 275, 395, 445, 575, 605, 869, 979, 1265, 1817, 1975, 2047, 2225, 2783, 3025, 4345, 4895, 6325, 7031, 9085, 9559, 10235, 10769, 13915, 19987, 21725, 22517, 24475, 35155, 45425, 47795, 51175, 53845, 69575, 77341, 99935, 112585, 161713, 175775, 219857, 238975, 247687, 269225, 386705, 499675, 562925, 808565, 850751, 1099285, 1238435, 1778843, 1933525, 4042825, 4253755, 5496425, 6192175, 8894215, 19567273, 21268775, 44471075, 97836365, 489181825]

約数ペア:

[(1, 489181825), (5, 97836365), (11, 44471075), (23, 21268775), (25, 19567273), (55, 8894215), (79, 6192175), (89, 5496425), (115, 4253755), (121, 4042825), (253, 1933525), (275, 1778843), (395, 1238435), (445, 1099285), (575, 850751), (605, 808565), (869, 562925), (979, 499675), (1265, 386705), (1817, 269225), (1975, 247687), (2047, 238975), (2225, 219857), (2783, 175775), (3025, 161713), (4345, 112585), (4895, 99935), (6325, 77341), (7031, 69575), (9085, 53845), (9559, 51175), (10235, 47795), (10769, 45425), (13915, 35155), (19987, 24475), (21725, 22517)]