21131431680

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{1861}}^1\times {\mathrm{2957}}^1$

素因数の和:4842

約数の個数: 144

約数和(自身を含む): 67547610144

約数和(自身を除く): 46416178464

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1861, 1920, 2957, 3722, 3840, 5583, 5914, 7444, 8871, 9305, 11166, 11828, 14785, 14888, 17742, 18610, 22332, 23656, 27915, 29570, 29776, 35484, 37220, 44355, 44664, 47312, 55830, 59140, 59552, 70968, 74440, 88710, 89328, 94624, 111660, 118280, 119104, 141936, 148880, 177420, 178656, 189248, 223320, 236560, 238208, 283872, 297760, 354840, 357312, 378496, 446640, 473120, 476416, 567744, 595520, 709680, 714624, 756992, 893280, 946240, 1135488, 1191040, 1419360, 1429248, 1786560, 1892480, 2270976, 2382080, 2838720, 3573120, 3784960, 5502977, 5677440, 7146240, 11005954, 11354880, 16508931, 22011908, 27514885, 33017862, 44023816, 55029770, 66035724, 82544655, 88047632, 110059540, 132071448, 165089310, 176095264, 220119080, 264142896, 330178620, 352190528, 440238160, 528285792, 660357240, 704381056, 880476320, 1056571584, 1320714480, 1408762112, 1760952640, 2113143168, 2641428960, 3521905280, 4226286336, 5282857920, 7043810560, 10565715840, 21131431680]

約数ペア:

[(1, 21131431680), (2, 10565715840), (3, 7043810560), (4, 5282857920), (5, 4226286336), (6, 3521905280), (8, 2641428960), (10, 2113143168), (12, 1760952640), (15, 1408762112), (16, 1320714480), (20, 1056571584), (24, 880476320), (30, 704381056), (32, 660357240), (40, 528285792), (48, 440238160), (60, 352190528), (64, 330178620), (80, 264142896), (96, 220119080), (120, 176095264), (128, 165089310), (160, 132071448), (192, 110059540), (240, 88047632), (256, 82544655), (320, 66035724), (384, 55029770), (480, 44023816), (640, 33017862), (768, 27514885), (960, 22011908), (1280, 16508931), (1861, 11354880), (1920, 11005954), (2957, 7146240), (3722, 5677440), (3840, 5502977), (5583, 3784960), (5914, 3573120), (7444, 2838720), (8871, 2382080), (9305, 2270976), (11166, 1892480), (11828, 1786560), (14785, 1429248), (14888, 1419360), (17742, 1191040), (18610, 1135488), (22332, 946240), (23656, 893280), (27915, 756992), (29570, 714624), (29776, 709680), (35484, 595520), (37220, 567744), (44355, 476416), (44664, 473120), (47312, 446640), (55830, 378496), (59140, 357312), (59552, 354840), (70968, 297760), (74440, 283872), (88710, 238208), (89328, 236560), (94624, 223320), (111660, 189248), (118280, 178656), (119104, 177420), (141936, 148880)]