20156850

素因数分解:

$2^1\times 3^6\times 5^2\times 7^1\times {\mathrm{79}}^1$

素因数の和:116

約数の個数: 168

約数和(自身を含む): 65055360

約数和(自身を除く): 44898510

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 45, 50, 54, 63, 70, 75, 79, 81, 90, 105, 126, 135, 150, 158, 162, 175, 189, 210, 225, 237, 243, 270, 315, 350, 378, 395, 405, 450, 474, 486, 525, 553, 567, 630, 675, 711, 729, 790, 810, 945, 1050, 1106, 1134, 1185, 1215, 1350, 1422, 1458, 1575, 1659, 1701, 1890, 1975, 2025, 2133, 2370, 2430, 2765, 2835, 3150, 3318, 3402, 3555, 3645, 3950, 4050, 4266, 4725, 4977, 5103, 5530, 5670, 5925, 6075, 6399, 7110, 7290, 8295, 8505, 9450, 9954, 10206, 10665, 11850, 12150, 12798, 13825, 14175, 14931, 16590, 17010, 17775, 18225, 19197, 21330, 24885, 25515, 27650, 28350, 29862, 31995, 35550, 36450, 38394, 41475, 42525, 44793, 49770, 51030, 53325, 57591, 63990, 74655, 82950, 85050, 89586, 95985, 106650, 115182, 124425, 127575, 134379, 149310, 159975, 191970, 223965, 248850, 255150, 268758, 287955, 319950, 373275, 403137, 447930, 479925, 575910, 671895, 746550, 806274, 959850, 1119825, 1343790, 1439775, 2015685, 2239650, 2879550, 3359475, 4031370, 6718950, 10078425, 20156850]

約数ペア:

[(1, 20156850), (2, 10078425), (3, 6718950), (5, 4031370), (6, 3359475), (7, 2879550), (9, 2239650), (10, 2015685), (14, 1439775), (15, 1343790), (18, 1119825), (21, 959850), (25, 806274), (27, 746550), (30, 671895), (35, 575910), (42, 479925), (45, 447930), (50, 403137), (54, 373275), (63, 319950), (70, 287955), (75, 268758), (79, 255150), (81, 248850), (90, 223965), (105, 191970), (126, 159975), (135, 149310), (150, 134379), (158, 127575), (162, 124425), (175, 115182), (189, 106650), (210, 95985), (225, 89586), (237, 85050), (243, 82950), (270, 74655), (315, 63990), (350, 57591), (378, 53325), (395, 51030), (405, 49770), (450, 44793), (474, 42525), (486, 41475), (525, 38394), (553, 36450), (567, 35550), (630, 31995), (675, 29862), (711, 28350), (729, 27650), (790, 25515), (810, 24885), (945, 21330), (1050, 19197), (1106, 18225), (1134, 17775), (1185, 17010), (1215, 16590), (1350, 14931), (1422, 14175), (1458, 13825), (1575, 12798), (1659, 12150), (1701, 11850), (1890, 10665), (1975, 10206), (2025, 9954), (2133, 9450), (2370, 8505), (2430, 8295), (2765, 7290), (2835, 7110), (3150, 6399), (3318, 6075), (3402, 5925), (3555, 5670), (3645, 5530), (3950, 5103), (4050, 4977), (4266, 4725)]