2020487680

素因数分解:

$2^9\times 5^1\times {\mathrm{149}}^1\times {\mathrm{5297}}^1$

素因数の和:5469

約数の個数: 80

約数和(自身を含む): 4877868600

約数和(自身を除く): 2857380920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 149, 160, 256, 298, 320, 512, 596, 640, 745, 1192, 1280, 1490, 2384, 2560, 2980, 4768, 5297, 5960, 9536, 10594, 11920, 19072, 21188, 23840, 26485, 38144, 42376, 47680, 52970, 76288, 84752, 95360, 105940, 169504, 190720, 211880, 339008, 381440, 423760, 678016, 789253, 847520, 1356032, 1578506, 1695040, 2712064, 3157012, 3390080, 3946265, 6314024, 6780160, 7892530, 12628048, 13560320, 15785060, 25256096, 31570120, 50512192, 63140240, 101024384, 126280480, 202048768, 252560960, 404097536, 505121920, 1010243840, 2020487680]

約数ペア:

[(1, 2020487680), (2, 1010243840), (4, 505121920), (5, 404097536), (8, 252560960), (10, 202048768), (16, 126280480), (20, 101024384), (32, 63140240), (40, 50512192), (64, 31570120), (80, 25256096), (128, 15785060), (149, 13560320), (160, 12628048), (256, 7892530), (298, 6780160), (320, 6314024), (512, 3946265), (596, 3390080), (640, 3157012), (745, 2712064), (1192, 1695040), (1280, 1578506), (1490, 1356032), (2384, 847520), (2560, 789253), (2980, 678016), (4768, 423760), (5297, 381440), (5960, 339008), (9536, 211880), (10594, 190720), (11920, 169504), (19072, 105940), (21188, 95360), (23840, 84752), (26485, 76288), (38144, 52970), (42376, 47680)]