20212147900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1\times {\mathrm{1823}}^1$

素因数の和:2228

約数の個数: 144

約数和(自身を含む): 51372711936

約数和(自身を除く): 31160564036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 47, 50, 70, 94, 100, 140, 175, 188, 235, 329, 337, 350, 470, 658, 674, 700, 940, 1175, 1316, 1348, 1645, 1685, 1823, 2350, 2359, 3290, 3370, 3646, 4700, 4718, 6580, 6740, 7292, 8225, 8425, 9115, 9436, 11795, 12761, 15839, 16450, 16850, 18230, 23590, 25522, 31678, 32900, 33700, 36460, 45575, 47180, 51044, 58975, 63356, 63805, 79195, 85681, 91150, 110873, 117950, 127610, 158390, 171362, 182300, 221746, 235900, 255220, 316780, 319025, 342724, 395975, 428405, 443492, 554365, 599767, 614351, 638050, 791950, 856810, 1108730, 1199534, 1228702, 1276100, 1583900, 1713620, 2142025, 2217460, 2399068, 2457404, 2771825, 2998835, 3071755, 4284050, 4300457, 5543650, 5997670, 6143510, 8568100, 8600914, 11087300, 11995340, 12287020, 14994175, 15358775, 17201828, 21502285, 28874497, 29988350, 30717550, 43004570, 57748994, 59976700, 61435100, 86009140, 107511425, 115497988, 144372485, 202121479, 215022850, 288744970, 404242958, 430045700, 577489940, 721862425, 808485916, 1010607395, 1443724850, 2021214790, 2887449700, 4042429580, 5053036975, 10106073950, 20212147900]

約数ペア:

[(1, 20212147900), (2, 10106073950), (4, 5053036975), (5, 4042429580), (7, 2887449700), (10, 2021214790), (14, 1443724850), (20, 1010607395), (25, 808485916), (28, 721862425), (35, 577489940), (47, 430045700), (50, 404242958), (70, 288744970), (94, 215022850), (100, 202121479), (140, 144372485), (175, 115497988), (188, 107511425), (235, 86009140), (329, 61435100), (337, 59976700), (350, 57748994), (470, 43004570), (658, 30717550), (674, 29988350), (700, 28874497), (940, 21502285), (1175, 17201828), (1316, 15358775), (1348, 14994175), (1645, 12287020), (1685, 11995340), (1823, 11087300), (2350, 8600914), (2359, 8568100), (3290, 6143510), (3370, 5997670), (3646, 5543650), (4700, 4300457), (4718, 4284050), (6580, 3071755), (6740, 2998835), (7292, 2771825), (8225, 2457404), (8425, 2399068), (9115, 2217460), (9436, 2142025), (11795, 1713620), (12761, 1583900), (15839, 1276100), (16450, 1228702), (16850, 1199534), (18230, 1108730), (23590, 856810), (25522, 791950), (31678, 638050), (32900, 614351), (33700, 599767), (36460, 554365), (45575, 443492), (47180, 428405), (51044, 395975), (58975, 342724), (63356, 319025), (63805, 316780), (79195, 255220), (85681, 235900), (91150, 221746), (110873, 182300), (117950, 171362), (127610, 158390)]