20118397940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{5387}}^1$

素因数の和:5609

約数の個数: 96

約数和(自身を含む): 44969541120

約数和(自身を除く): 24851143180

約数列:

[1, 2, 4, 5, 10, 20, 29, 47, 58, 94, 116, 137, 145, 188, 235, 274, 290, 470, 548, 580, 685, 940, 1363, 1370, 2726, 2740, 3973, 5387, 5452, 6439, 6815, 7946, 10774, 12878, 13630, 15892, 19865, 21548, 25756, 26935, 27260, 32195, 39730, 53870, 64390, 79460, 107740, 128780, 156223, 186731, 253189, 312446, 373462, 506378, 624892, 738019, 746924, 781115, 933655, 1012756, 1265945, 1476038, 1562230, 1867310, 2531890, 2952076, 3124460, 3690095, 3734620, 5063780, 7342481, 7380190, 14684962, 14760380, 21402551, 29369924, 34686893, 36712405, 42805102, 69373786, 73424810, 85610204, 107012755, 138747572, 146849620, 173434465, 214025510, 346868930, 428051020, 693737860, 1005919897, 2011839794, 4023679588, 5029599485, 10059198970, 20118397940]

約数ペア:

[(1, 20118397940), (2, 10059198970), (4, 5029599485), (5, 4023679588), (10, 2011839794), (20, 1005919897), (29, 693737860), (47, 428051020), (58, 346868930), (94, 214025510), (116, 173434465), (137, 146849620), (145, 138747572), (188, 107012755), (235, 85610204), (274, 73424810), (290, 69373786), (470, 42805102), (548, 36712405), (580, 34686893), (685, 29369924), (940, 21402551), (1363, 14760380), (1370, 14684962), (2726, 7380190), (2740, 7342481), (3973, 5063780), (5387, 3734620), (5452, 3690095), (6439, 3124460), (6815, 2952076), (7946, 2531890), (10774, 1867310), (12878, 1562230), (13630, 1476038), (15892, 1265945), (19865, 1012756), (21548, 933655), (25756, 781115), (26935, 746924), (27260, 738019), (32195, 624892), (39730, 506378), (53870, 373462), (64390, 312446), (79460, 253189), (107740, 186731), (128780, 156223)]