20216979200

素因数分解:

$2^8\times 5^2\times {\mathrm{11}}^1\times {\mathrm{287173}}^1$

素因数の和:287210

約数の個数: 108

約数和(自身を含む): 54589480008

約数和(自身を除く): 34372500808

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 128, 160, 176, 200, 220, 256, 275, 320, 352, 400, 440, 550, 640, 704, 800, 880, 1100, 1280, 1408, 1600, 1760, 2200, 2816, 3200, 3520, 4400, 6400, 7040, 8800, 14080, 17600, 35200, 70400, 287173, 574346, 1148692, 1435865, 2297384, 2871730, 3158903, 4594768, 5743460, 6317806, 7179325, 9189536, 11486920, 12635612, 14358650, 15794515, 18379072, 22973840, 25271224, 28717300, 31589030, 36758144, 45947680, 50542448, 57434600, 63178060, 73516288, 78972575, 91895360, 101084896, 114869200, 126356120, 157945150, 183790720, 202169792, 229738400, 252712240, 315890300, 367581440, 404339584, 459476800, 505424480, 631780600, 808679168, 918953600, 1010848960, 1263561200, 1837907200, 2021697920, 2527122400, 4043395840, 5054244800, 10108489600, 20216979200]

約数ペア:

[(1, 20216979200), (2, 10108489600), (4, 5054244800), (5, 4043395840), (8, 2527122400), (10, 2021697920), (11, 1837907200), (16, 1263561200), (20, 1010848960), (22, 918953600), (25, 808679168), (32, 631780600), (40, 505424480), (44, 459476800), (50, 404339584), (55, 367581440), (64, 315890300), (80, 252712240), (88, 229738400), (100, 202169792), (110, 183790720), (128, 157945150), (160, 126356120), (176, 114869200), (200, 101084896), (220, 91895360), (256, 78972575), (275, 73516288), (320, 63178060), (352, 57434600), (400, 50542448), (440, 45947680), (550, 36758144), (640, 31589030), (704, 28717300), (800, 25271224), (880, 22973840), (1100, 18379072), (1280, 15794515), (1408, 14358650), (1600, 12635612), (1760, 11486920), (2200, 9189536), (2816, 7179325), (3200, 6317806), (3520, 5743460), (4400, 4594768), (6400, 3158903), (7040, 2871730), (8800, 2297384), (14080, 1435865), (17600, 1148692), (35200, 574346), (70400, 287173)]