254995840

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1249}}^1$

素因数の和:1308

約数の個数: 128

約数和(自身を含む): 688500000

約数和(自身を除く): 433504160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 64, 80, 88, 110, 116, 128, 145, 160, 176, 220, 232, 290, 319, 320, 352, 440, 464, 580, 638, 640, 704, 880, 928, 1160, 1249, 1276, 1408, 1595, 1760, 1856, 2320, 2498, 2552, 3190, 3520, 3712, 4640, 4996, 5104, 6245, 6380, 7040, 9280, 9992, 10208, 12490, 12760, 13739, 18560, 19984, 20416, 24980, 25520, 27478, 36221, 39968, 40832, 49960, 51040, 54956, 68695, 72442, 79936, 99920, 102080, 109912, 137390, 144884, 159872, 181105, 199840, 204160, 219824, 274780, 289768, 362210, 398431, 399680, 439648, 549560, 579536, 724420, 796862, 799360, 879296, 1099120, 1159072, 1448840, 1593724, 1758592, 1992155, 2198240, 2318144, 2897680, 3187448, 3984310, 4396480, 4636288, 5795360, 6374896, 7968620, 8792960, 11590720, 12749792, 15937240, 23181440, 25499584, 31874480, 50999168, 63748960, 127497920, 254995840]

約数ペア:

[(1, 254995840), (2, 127497920), (4, 63748960), (5, 50999168), (8, 31874480), (10, 25499584), (11, 23181440), (16, 15937240), (20, 12749792), (22, 11590720), (29, 8792960), (32, 7968620), (40, 6374896), (44, 5795360), (55, 4636288), (58, 4396480), (64, 3984310), (80, 3187448), (88, 2897680), (110, 2318144), (116, 2198240), (128, 1992155), (145, 1758592), (160, 1593724), (176, 1448840), (220, 1159072), (232, 1099120), (290, 879296), (319, 799360), (320, 796862), (352, 724420), (440, 579536), (464, 549560), (580, 439648), (638, 399680), (640, 398431), (704, 362210), (880, 289768), (928, 274780), (1160, 219824), (1249, 204160), (1276, 199840), (1408, 181105), (1595, 159872), (1760, 144884), (1856, 137390), (2320, 109912), (2498, 102080), (2552, 99920), (3190, 79936), (3520, 72442), (3712, 68695), (4640, 54956), (4996, 51040), (5104, 49960), (6245, 40832), (6380, 39968), (7040, 36221), (9280, 27478), (9992, 25520), (10208, 24980), (12490, 20416), (12760, 19984), (13739, 18560)]