205123545

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:507

約数の個数: 96

約数和(自身を含む): 415134720

約数和(自身を除く): 210011175

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 43, 45, 55, 69, 99, 115, 129, 165, 207, 215, 253, 345, 387, 419, 473, 495, 645, 759, 989, 1035, 1257, 1265, 1419, 1935, 2095, 2277, 2365, 2967, 3771, 3795, 4257, 4609, 4945, 6285, 7095, 8901, 9637, 10879, 11385, 13827, 14835, 18017, 18855, 21285, 23045, 28911, 32637, 41481, 44505, 48185, 54051, 54395, 69135, 86733, 90085, 97911, 106007, 144555, 162153, 163185, 198187, 207405, 270255, 318021, 414391, 433665, 489555, 530035, 594561, 810765, 954063, 990935, 1243173, 1590105, 1783683, 2071955, 2972805, 3729519, 4558301, 4770315, 6215865, 8918415, 13674903, 18647595, 22791505, 41024709, 68374515, 205123545]

約数ペア:

[(1, 205123545), (3, 68374515), (5, 41024709), (9, 22791505), (11, 18647595), (15, 13674903), (23, 8918415), (33, 6215865), (43, 4770315), (45, 4558301), (55, 3729519), (69, 2972805), (99, 2071955), (115, 1783683), (129, 1590105), (165, 1243173), (207, 990935), (215, 954063), (253, 810765), (345, 594561), (387, 530035), (419, 489555), (473, 433665), (495, 414391), (645, 318021), (759, 270255), (989, 207405), (1035, 198187), (1257, 163185), (1265, 162153), (1419, 144555), (1935, 106007), (2095, 97911), (2277, 90085), (2365, 86733), (2967, 69135), (3771, 54395), (3795, 54051), (4257, 48185), (4609, 44505), (4945, 41481), (6285, 32637), (7095, 28911), (8901, 23045), (9637, 21285), (10879, 18855), (11385, 18017), (13827, 14835)]