20518920

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{2111}}^1$

素因数の和:2137

約数の個数: 96

約数和(自身を含む): 69189120

約数和(自身を除く): 48670200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2111, 2430, 3240, 4222, 4860, 6333, 8444, 9720, 10555, 12666, 16888, 18999, 21110, 25332, 31665, 37998, 42220, 50664, 56997, 63330, 75996, 84440, 94995, 113994, 126660, 151992, 170991, 189990, 227988, 253320, 284985, 341982, 379980, 455976, 512973, 569970, 683964, 759960, 854955, 1025946, 1139940, 1367928, 1709910, 2051892, 2279880, 2564865, 3419820, 4103784, 5129730, 6839640, 10259460, 20518920]

約数ペア:

[(1, 20518920), (2, 10259460), (3, 6839640), (4, 5129730), (5, 4103784), (6, 3419820), (8, 2564865), (9, 2279880), (10, 2051892), (12, 1709910), (15, 1367928), (18, 1139940), (20, 1025946), (24, 854955), (27, 759960), (30, 683964), (36, 569970), (40, 512973), (45, 455976), (54, 379980), (60, 341982), (72, 284985), (81, 253320), (90, 227988), (108, 189990), (120, 170991), (135, 151992), (162, 126660), (180, 113994), (216, 94995), (243, 84440), (270, 75996), (324, 63330), (360, 56997), (405, 50664), (486, 42220), (540, 37998), (648, 31665), (810, 25332), (972, 21110), (1080, 18999), (1215, 16888), (1620, 12666), (1944, 10555), (2111, 9720), (2430, 8444), (3240, 6333), (4222, 4860)]