28379820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^4\times {\mathrm{197}}^1$

素因数の和:237

約数の個数: 120

約数和(自身を含む): 93172464

約数和(自身を除く): 64792644

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 197, 210, 245, 294, 343, 394, 420, 490, 588, 591, 686, 735, 788, 980, 985, 1029, 1182, 1372, 1379, 1470, 1715, 1970, 2058, 2364, 2401, 2758, 2940, 2955, 3430, 3940, 4116, 4137, 4802, 5145, 5516, 5910, 6860, 6895, 7203, 8274, 9604, 9653, 10290, 11820, 12005, 13790, 14406, 16548, 19306, 20580, 20685, 24010, 27580, 28812, 28959, 36015, 38612, 41370, 48020, 48265, 57918, 67571, 72030, 82740, 96530, 115836, 135142, 144060, 144795, 193060, 202713, 270284, 289590, 337855, 405426, 472997, 579180, 675710, 810852, 945994, 1013565, 1351420, 1418991, 1891988, 2027130, 2364985, 2837982, 4054260, 4729970, 5675964, 7094955, 9459940, 14189910, 28379820]

約数ペア:

[(1, 28379820), (2, 14189910), (3, 9459940), (4, 7094955), (5, 5675964), (6, 4729970), (7, 4054260), (10, 2837982), (12, 2364985), (14, 2027130), (15, 1891988), (20, 1418991), (21, 1351420), (28, 1013565), (30, 945994), (35, 810852), (42, 675710), (49, 579180), (60, 472997), (70, 405426), (84, 337855), (98, 289590), (105, 270284), (140, 202713), (147, 193060), (196, 144795), (197, 144060), (210, 135142), (245, 115836), (294, 96530), (343, 82740), (394, 72030), (420, 67571), (490, 57918), (588, 48265), (591, 48020), (686, 41370), (735, 38612), (788, 36015), (980, 28959), (985, 28812), (1029, 27580), (1182, 24010), (1372, 20685), (1379, 20580), (1470, 19306), (1715, 16548), (1970, 14406), (2058, 13790), (2364, 12005), (2401, 11820), (2758, 10290), (2940, 9653), (2955, 9604), (3430, 8274), (3940, 7203), (4116, 6895), (4137, 6860), (4802, 5910), (5145, 5516)]