20658240

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{797}}^1$

素因数の和:826

約数の個数: 140

約数和(自身を含む): 73577196

約数和(自身を除く): 52918956

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 192, 216, 240, 270, 288, 320, 324, 360, 405, 432, 480, 540, 576, 648, 720, 797, 810, 864, 960, 1080, 1296, 1440, 1594, 1620, 1728, 2160, 2391, 2592, 2880, 3188, 3240, 3985, 4320, 4782, 5184, 6376, 6480, 7173, 7970, 8640, 9564, 11955, 12752, 12960, 14346, 15940, 19128, 21519, 23910, 25504, 25920, 28692, 31880, 35865, 38256, 43038, 47820, 51008, 57384, 63760, 64557, 71730, 76512, 86076, 95640, 107595, 114768, 127520, 129114, 143460, 153024, 172152, 191280, 215190, 229536, 255040, 258228, 286920, 322785, 344304, 382560, 430380, 459072, 516456, 573840, 645570, 688608, 765120, 860760, 1032912, 1147680, 1291140, 1377216, 1721520, 2065824, 2295360, 2582280, 3443040, 4131648, 5164560, 6886080, 10329120, 20658240]

約数ペア:

[(1, 20658240), (2, 10329120), (3, 6886080), (4, 5164560), (5, 4131648), (6, 3443040), (8, 2582280), (9, 2295360), (10, 2065824), (12, 1721520), (15, 1377216), (16, 1291140), (18, 1147680), (20, 1032912), (24, 860760), (27, 765120), (30, 688608), (32, 645570), (36, 573840), (40, 516456), (45, 459072), (48, 430380), (54, 382560), (60, 344304), (64, 322785), (72, 286920), (80, 258228), (81, 255040), (90, 229536), (96, 215190), (108, 191280), (120, 172152), (135, 153024), (144, 143460), (160, 129114), (162, 127520), (180, 114768), (192, 107595), (216, 95640), (240, 86076), (270, 76512), (288, 71730), (320, 64557), (324, 63760), (360, 57384), (405, 51008), (432, 47820), (480, 43038), (540, 38256), (576, 35865), (648, 31880), (720, 28692), (797, 25920), (810, 25504), (864, 23910), (960, 21519), (1080, 19128), (1296, 15940), (1440, 14346), (1594, 12960), (1620, 12752), (1728, 11955), (2160, 9564), (2391, 8640), (2592, 7970), (2880, 7173), (3188, 6480), (3240, 6376), (3985, 5184), (4320, 4782)]