20227900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 144

約数和(自身を含む): 56996352

約数和(自身を除く): 36768452

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 37, 44, 50, 55, 70, 71, 74, 77, 100, 110, 140, 142, 148, 154, 175, 185, 220, 259, 275, 284, 308, 350, 355, 370, 385, 407, 497, 518, 550, 700, 710, 740, 770, 781, 814, 925, 994, 1036, 1100, 1295, 1420, 1540, 1562, 1628, 1775, 1850, 1925, 1988, 2035, 2485, 2590, 2627, 2849, 3124, 3550, 3700, 3850, 3905, 4070, 4970, 5180, 5254, 5467, 5698, 6475, 7100, 7700, 7810, 8140, 9940, 10175, 10508, 10934, 11396, 12425, 12950, 13135, 14245, 15620, 18389, 19525, 20350, 21868, 24850, 25900, 26270, 27335, 28490, 28897, 36778, 39050, 40700, 49700, 52540, 54670, 56980, 57794, 65675, 71225, 73556, 78100, 91945, 109340, 115588, 131350, 136675, 142450, 144485, 183890, 202279, 262700, 273350, 284900, 288970, 367780, 404558, 459725, 546700, 577940, 722425, 809116, 919450, 1011395, 1444850, 1838900, 2022790, 2889700, 4045580, 5056975, 10113950, 20227900]

約数ペア:

[(1, 20227900), (2, 10113950), (4, 5056975), (5, 4045580), (7, 2889700), (10, 2022790), (11, 1838900), (14, 1444850), (20, 1011395), (22, 919450), (25, 809116), (28, 722425), (35, 577940), (37, 546700), (44, 459725), (50, 404558), (55, 367780), (70, 288970), (71, 284900), (74, 273350), (77, 262700), (100, 202279), (110, 183890), (140, 144485), (142, 142450), (148, 136675), (154, 131350), (175, 115588), (185, 109340), (220, 91945), (259, 78100), (275, 73556), (284, 71225), (308, 65675), (350, 57794), (355, 56980), (370, 54670), (385, 52540), (407, 49700), (497, 40700), (518, 39050), (550, 36778), (700, 28897), (710, 28490), (740, 27335), (770, 26270), (781, 25900), (814, 24850), (925, 21868), (994, 20350), (1036, 19525), (1100, 18389), (1295, 15620), (1420, 14245), (1540, 13135), (1562, 12950), (1628, 12425), (1775, 11396), (1850, 10934), (1925, 10508), (1988, 10175), (2035, 9940), (2485, 8140), (2590, 7810), (2627, 7700), (2849, 7100), (3124, 6475), (3550, 5698), (3700, 5467), (3850, 5254), (3905, 5180), (4070, 4970)]