20199208448

素因数分解:

$2^9\times {\mathrm{167}}^1\times {\mathrm{337}}^1\times {\mathrm{701}}^1$

素因数の和:1223

約数の個数: 80

約数和(自身を含む): 40779202464

約数和(自身を除く): 20579994016

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 167, 256, 334, 337, 512, 668, 674, 701, 1336, 1348, 1402, 2672, 2696, 2804, 5344, 5392, 5608, 10688, 10784, 11216, 21376, 21568, 22432, 42752, 43136, 44864, 56279, 85504, 86272, 89728, 112558, 117067, 172544, 179456, 225116, 234134, 236237, 358912, 450232, 468268, 472474, 900464, 936536, 944948, 1800928, 1873072, 1889896, 3601856, 3746144, 3779792, 7203712, 7492288, 7559584, 14407424, 14984576, 15119168, 28814848, 29969152, 30238336, 39451579, 59938304, 60476672, 78903158, 120953344, 157806316, 315612632, 631225264, 1262450528, 2524901056, 5049802112, 10099604224, 20199208448]

約数ペア:

[(1, 20199208448), (2, 10099604224), (4, 5049802112), (8, 2524901056), (16, 1262450528), (32, 631225264), (64, 315612632), (128, 157806316), (167, 120953344), (256, 78903158), (334, 60476672), (337, 59938304), (512, 39451579), (668, 30238336), (674, 29969152), (701, 28814848), (1336, 15119168), (1348, 14984576), (1402, 14407424), (2672, 7559584), (2696, 7492288), (2804, 7203712), (5344, 3779792), (5392, 3746144), (5608, 3601856), (10688, 1889896), (10784, 1873072), (11216, 1800928), (21376, 944948), (21568, 936536), (22432, 900464), (42752, 472474), (43136, 468268), (44864, 450232), (56279, 358912), (85504, 236237), (86272, 234134), (89728, 225116), (112558, 179456), (117067, 172544)]