20759940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:182

約数の個数: 144

約数和(自身を含む): 67420080

約数和(自身を除く): 46660140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 41, 45, 58, 60, 82, 87, 90, 97, 116, 123, 145, 164, 174, 180, 194, 205, 246, 261, 290, 291, 348, 369, 388, 410, 435, 485, 492, 522, 580, 582, 615, 738, 820, 870, 873, 970, 1044, 1164, 1189, 1230, 1305, 1455, 1476, 1740, 1746, 1845, 1940, 2378, 2460, 2610, 2813, 2910, 3492, 3567, 3690, 3977, 4365, 4756, 5220, 5626, 5820, 5945, 7134, 7380, 7954, 8439, 8730, 10701, 11252, 11890, 11931, 14065, 14268, 15908, 16878, 17460, 17835, 19885, 21402, 23780, 23862, 25317, 28130, 33756, 35670, 35793, 39770, 42195, 42804, 47724, 50634, 53505, 56260, 59655, 71340, 71586, 79540, 84390, 101268, 107010, 115333, 119310, 126585, 143172, 168780, 178965, 214020, 230666, 238620, 253170, 345999, 357930, 461332, 506340, 576665, 691998, 715860, 1037997, 1153330, 1383996, 1729995, 2075994, 2306660, 3459990, 4151988, 5189985, 6919980, 10379970, 20759940]

約数ペア:

[(1, 20759940), (2, 10379970), (3, 6919980), (4, 5189985), (5, 4151988), (6, 3459990), (9, 2306660), (10, 2075994), (12, 1729995), (15, 1383996), (18, 1153330), (20, 1037997), (29, 715860), (30, 691998), (36, 576665), (41, 506340), (45, 461332), (58, 357930), (60, 345999), (82, 253170), (87, 238620), (90, 230666), (97, 214020), (116, 178965), (123, 168780), (145, 143172), (164, 126585), (174, 119310), (180, 115333), (194, 107010), (205, 101268), (246, 84390), (261, 79540), (290, 71586), (291, 71340), (348, 59655), (369, 56260), (388, 53505), (410, 50634), (435, 47724), (485, 42804), (492, 42195), (522, 39770), (580, 35793), (582, 35670), (615, 33756), (738, 28130), (820, 25317), (870, 23862), (873, 23780), (970, 21402), (1044, 19885), (1164, 17835), (1189, 17460), (1230, 16878), (1305, 15908), (1455, 14268), (1476, 14065), (1740, 11931), (1746, 11890), (1845, 11252), (1940, 10701), (2378, 8730), (2460, 8439), (2610, 7954), (2813, 7380), (2910, 7134), (3492, 5945), (3567, 5820), (3690, 5626), (3977, 5220), (4365, 4756)]