20730638880

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{685537}}^1$

素因数の和:685568

約数の個数: 192

約数和(自身を含む): 82922676480

約数和(自身を除く): 62192037600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 30240, 685537, 1371074, 2056611, 2742148, 3427685, 4113222, 4798759, 5484296, 6169833, 6855370, 8226444, 9597518, 10283055, 10968592, 12339666, 13710740, 14396277, 16452888, 18509499, 19195036, 20566110, 21937184, 23993795, 24679332, 27421480, 28792554, 30849165, 32905776, 37018998, 38390072, 41132220, 43188831, 47987590, 49358664, 54842960, 57585108, 61698330, 65811552, 71981385, 74037996, 76780144, 82264440, 86377662, 92547495, 95975180, 98717328, 109685920, 115170216, 123396660, 129566493, 143962770, 148075992, 153560288, 164528880, 172755324, 185094990, 191950360, 197434656, 215944155, 230340432, 246793320, 259132986, 287925540, 296151984, 329057760, 345510648, 370189980, 383900720, 431888310, 460680864, 493586640, 518265972, 575851080, 592303968, 647832465, 691021296, 740379960, 767801440, 863776620, 987173280, 1036531944, 1151702160, 1295664930, 1382042592, 1480759920, 1727553240, 2073063888, 2303404320, 2591329860, 2961519840, 3455106480, 4146127776, 5182659720, 6910212960, 10365319440, 20730638880]

約数ペア:

[(1, 20730638880), (2, 10365319440), (3, 6910212960), (4, 5182659720), (5, 4146127776), (6, 3455106480), (7, 2961519840), (8, 2591329860), (9, 2303404320), (10, 2073063888), (12, 1727553240), (14, 1480759920), (15, 1382042592), (16, 1295664930), (18, 1151702160), (20, 1036531944), (21, 987173280), (24, 863776620), (27, 767801440), (28, 740379960), (30, 691021296), (32, 647832465), (35, 592303968), (36, 575851080), (40, 518265972), (42, 493586640), (45, 460680864), (48, 431888310), (54, 383900720), (56, 370189980), (60, 345510648), (63, 329057760), (70, 296151984), (72, 287925540), (80, 259132986), (84, 246793320), (90, 230340432), (96, 215944155), (105, 197434656), (108, 191950360), (112, 185094990), (120, 172755324), (126, 164528880), (135, 153560288), (140, 148075992), (144, 143962770), (160, 129566493), (168, 123396660), (180, 115170216), (189, 109685920), (210, 98717328), (216, 95975180), (224, 92547495), (240, 86377662), (252, 82264440), (270, 76780144), (280, 74037996), (288, 71981385), (315, 65811552), (336, 61698330), (360, 57585108), (378, 54842960), (420, 49358664), (432, 47987590), (480, 43188831), (504, 41132220), (540, 38390072), (560, 37018998), (630, 32905776), (672, 30849165), (720, 28792554), (756, 27421480), (840, 24679332), (864, 23993795), (945, 21937184), (1008, 20566110), (1080, 19195036), (1120, 18509499), (1260, 16452888), (1440, 14396277), (1512, 13710740), (1680, 12339666), (1890, 10968592), (2016, 10283055), (2160, 9597518), (2520, 8226444), (3024, 6855370), (3360, 6169833), (3780, 5484296), (4320, 4798759), (5040, 4113222), (6048, 3427685), (7560, 2742148), (10080, 2056611), (15120, 1371074), (30240, 685537)]