20181234420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{389}}^1\times {\mathrm{1237}}^1$

素因数の和:1874

約数の個数: 144

約数和(自身を含む): 61687014480

約数和(自身を除く): 41505780060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 233, 389, 466, 699, 778, 932, 1165, 1167, 1237, 1398, 1556, 1945, 2097, 2330, 2334, 2474, 2796, 3495, 3501, 3711, 3890, 4194, 4660, 4668, 4948, 5835, 6185, 6990, 7002, 7422, 7780, 8388, 10485, 11133, 11670, 12370, 13980, 14004, 14844, 17505, 18555, 20970, 22266, 23340, 24740, 35010, 37110, 41940, 44532, 55665, 70020, 74220, 90637, 111330, 181274, 222660, 271911, 288221, 362548, 453185, 481193, 543822, 576442, 815733, 864663, 906370, 962386, 1087644, 1152884, 1359555, 1441105, 1443579, 1631466, 1729326, 1812740, 1924772, 2405965, 2593989, 2719110, 2882210, 2887158, 3262932, 3458652, 4078665, 4323315, 4330737, 4811930, 5187978, 5438220, 5764420, 5774316, 7217895, 8157330, 8646630, 8661474, 9623860, 10375956, 12969945, 14435790, 16314660, 17293260, 17322948, 21653685, 25939890, 28871580, 43307370, 51879780, 86614740, 112117969, 224235938, 336353907, 448471876, 560589845, 672707814, 1009061721, 1121179690, 1345415628, 1681769535, 2018123442, 2242359380, 3363539070, 4036246884, 5045308605, 6727078140, 10090617210, 20181234420]

約数ペア:

[(1, 20181234420), (2, 10090617210), (3, 6727078140), (4, 5045308605), (5, 4036246884), (6, 3363539070), (9, 2242359380), (10, 2018123442), (12, 1681769535), (15, 1345415628), (18, 1121179690), (20, 1009061721), (30, 672707814), (36, 560589845), (45, 448471876), (60, 336353907), (90, 224235938), (180, 112117969), (233, 86614740), (389, 51879780), (466, 43307370), (699, 28871580), (778, 25939890), (932, 21653685), (1165, 17322948), (1167, 17293260), (1237, 16314660), (1398, 14435790), (1556, 12969945), (1945, 10375956), (2097, 9623860), (2330, 8661474), (2334, 8646630), (2474, 8157330), (2796, 7217895), (3495, 5774316), (3501, 5764420), (3711, 5438220), (3890, 5187978), (4194, 4811930), (4660, 4330737), (4668, 4323315), (4948, 4078665), (5835, 3458652), (6185, 3262932), (6990, 2887158), (7002, 2882210), (7422, 2719110), (7780, 2593989), (8388, 2405965), (10485, 1924772), (11133, 1812740), (11670, 1729326), (12370, 1631466), (13980, 1443579), (14004, 1441105), (14844, 1359555), (17505, 1152884), (18555, 1087644), (20970, 962386), (22266, 906370), (23340, 864663), (24740, 815733), (35010, 576442), (37110, 543822), (41940, 481193), (44532, 453185), (55665, 362548), (70020, 288221), (74220, 271911), (90637, 222660), (111330, 181274)]