20354040

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:262

約数の個数: 192

約数和(自身を含む): 77837760

約数和(自身を除く): 57483720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 41, 42, 45, 56, 60, 63, 70, 72, 82, 84, 90, 105, 120, 123, 126, 140, 164, 168, 180, 197, 205, 210, 246, 252, 280, 287, 315, 328, 360, 369, 394, 410, 420, 492, 504, 574, 591, 615, 630, 738, 788, 820, 840, 861, 984, 985, 1148, 1182, 1230, 1260, 1379, 1435, 1476, 1576, 1640, 1722, 1773, 1845, 1970, 2296, 2364, 2460, 2520, 2583, 2758, 2870, 2952, 2955, 3444, 3546, 3690, 3940, 4137, 4305, 4728, 4920, 5166, 5516, 5740, 5910, 6888, 6895, 7092, 7380, 7880, 8077, 8274, 8610, 8865, 10332, 11032, 11480, 11820, 12411, 12915, 13790, 14184, 14760, 16154, 16548, 17220, 17730, 20664, 20685, 23640, 24231, 24822, 25830, 27580, 32308, 33096, 34440, 35460, 40385, 41370, 48462, 49644, 51660, 55160, 56539, 62055, 64616, 70920, 72693, 80770, 82740, 96924, 99288, 103320, 113078, 121155, 124110, 145386, 161540, 165480, 169617, 193848, 226156, 242310, 248220, 282695, 290772, 323080, 339234, 363465, 452312, 484620, 496440, 508851, 565390, 581544, 678468, 726930, 848085, 969240, 1017702, 1130780, 1356936, 1453860, 1696170, 2035404, 2261560, 2544255, 2907720, 3392340, 4070808, 5088510, 6784680, 10177020, 20354040]

約数ペア:

[(1, 20354040), (2, 10177020), (3, 6784680), (4, 5088510), (5, 4070808), (6, 3392340), (7, 2907720), (8, 2544255), (9, 2261560), (10, 2035404), (12, 1696170), (14, 1453860), (15, 1356936), (18, 1130780), (20, 1017702), (21, 969240), (24, 848085), (28, 726930), (30, 678468), (35, 581544), (36, 565390), (40, 508851), (41, 496440), (42, 484620), (45, 452312), (56, 363465), (60, 339234), (63, 323080), (70, 290772), (72, 282695), (82, 248220), (84, 242310), (90, 226156), (105, 193848), (120, 169617), (123, 165480), (126, 161540), (140, 145386), (164, 124110), (168, 121155), (180, 113078), (197, 103320), (205, 99288), (210, 96924), (246, 82740), (252, 80770), (280, 72693), (287, 70920), (315, 64616), (328, 62055), (360, 56539), (369, 55160), (394, 51660), (410, 49644), (420, 48462), (492, 41370), (504, 40385), (574, 35460), (591, 34440), (615, 33096), (630, 32308), (738, 27580), (788, 25830), (820, 24822), (840, 24231), (861, 23640), (984, 20685), (985, 20664), (1148, 17730), (1182, 17220), (1230, 16548), (1260, 16154), (1379, 14760), (1435, 14184), (1476, 13790), (1576, 12915), (1640, 12411), (1722, 11820), (1773, 11480), (1845, 11032), (1970, 10332), (2296, 8865), (2364, 8610), (2460, 8274), (2520, 8077), (2583, 7880), (2758, 7380), (2870, 7092), (2952, 6895), (2955, 6888), (3444, 5910), (3546, 5740), (3690, 5516), (3940, 5166), (4137, 4920), (4305, 4728)]