205287280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{887}}^1$

素因数の和:1174

約数の個数: 80

約数和(自身を含む): 523252224

約数和(自身を除く): 317964944

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 263, 440, 526, 880, 887, 1052, 1315, 1774, 2104, 2630, 2893, 3548, 4208, 4435, 5260, 5786, 7096, 8870, 9757, 10520, 11572, 14192, 14465, 17740, 19514, 21040, 23144, 28930, 35480, 39028, 46288, 48785, 57860, 70960, 78056, 97570, 115720, 156112, 195140, 231440, 233281, 390280, 466562, 780560, 933124, 1166405, 1866248, 2332810, 2566091, 3732496, 4665620, 5132182, 9331240, 10264364, 12830455, 18662480, 20528728, 25660910, 41057456, 51321820, 102643640, 205287280]

約数ペア:

[(1, 205287280), (2, 102643640), (4, 51321820), (5, 41057456), (8, 25660910), (10, 20528728), (11, 18662480), (16, 12830455), (20, 10264364), (22, 9331240), (40, 5132182), (44, 4665620), (55, 3732496), (80, 2566091), (88, 2332810), (110, 1866248), (176, 1166405), (220, 933124), (263, 780560), (440, 466562), (526, 390280), (880, 233281), (887, 231440), (1052, 195140), (1315, 156112), (1774, 115720), (2104, 97570), (2630, 78056), (2893, 70960), (3548, 57860), (4208, 48785), (4435, 46288), (5260, 39028), (5786, 35480), (7096, 28930), (8870, 23144), (9757, 21040), (10520, 19514), (11572, 17740), (14192, 14465)]