20733840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:382

約数の個数: 160

約数和(自身を含む): 74102400

約数和(自身を除く): 53368560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 36, 40, 45, 48, 54, 58, 60, 72, 80, 87, 90, 108, 116, 120, 135, 144, 145, 174, 180, 216, 232, 240, 261, 270, 290, 331, 348, 360, 432, 435, 464, 522, 540, 580, 662, 696, 720, 783, 870, 993, 1044, 1080, 1160, 1305, 1324, 1392, 1566, 1655, 1740, 1986, 2088, 2160, 2320, 2610, 2648, 2979, 3132, 3310, 3480, 3915, 3972, 4176, 4965, 5220, 5296, 5958, 6264, 6620, 6960, 7830, 7944, 8937, 9599, 9930, 10440, 11916, 12528, 13240, 14895, 15660, 15888, 17874, 19198, 19860, 20880, 23832, 26480, 28797, 29790, 31320, 35748, 38396, 39720, 44685, 47664, 47995, 57594, 59580, 62640, 71496, 76792, 79440, 86391, 89370, 95990, 115188, 119160, 142992, 143985, 153584, 172782, 178740, 191980, 230376, 238320, 259173, 287970, 345564, 357480, 383960, 431955, 460752, 518346, 575940, 691128, 714960, 767920, 863910, 1036692, 1151880, 1295865, 1382256, 1727820, 2073384, 2303760, 2591730, 3455640, 4146768, 5183460, 6911280, 10366920, 20733840]

約数ペア:

[(1, 20733840), (2, 10366920), (3, 6911280), (4, 5183460), (5, 4146768), (6, 3455640), (8, 2591730), (9, 2303760), (10, 2073384), (12, 1727820), (15, 1382256), (16, 1295865), (18, 1151880), (20, 1036692), (24, 863910), (27, 767920), (29, 714960), (30, 691128), (36, 575940), (40, 518346), (45, 460752), (48, 431955), (54, 383960), (58, 357480), (60, 345564), (72, 287970), (80, 259173), (87, 238320), (90, 230376), (108, 191980), (116, 178740), (120, 172782), (135, 153584), (144, 143985), (145, 142992), (174, 119160), (180, 115188), (216, 95990), (232, 89370), (240, 86391), (261, 79440), (270, 76792), (290, 71496), (331, 62640), (348, 59580), (360, 57594), (432, 47995), (435, 47664), (464, 44685), (522, 39720), (540, 38396), (580, 35748), (662, 31320), (696, 29790), (720, 28797), (783, 26480), (870, 23832), (993, 20880), (1044, 19860), (1080, 19198), (1160, 17874), (1305, 15888), (1324, 15660), (1392, 14895), (1566, 13240), (1655, 12528), (1740, 11916), (1986, 10440), (2088, 9930), (2160, 9599), (2320, 8937), (2610, 7944), (2648, 7830), (2979, 6960), (3132, 6620), (3310, 6264), (3480, 5958), (3915, 5296), (3972, 5220), (4176, 4965)]