20417400

素因数分解:

$2^3\times 3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:243

約数の個数: 192

約数和(自身を含む): 74400000

約数和(自身を除く): 53982600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 25, 27, 30, 36, 38, 40, 45, 50, 54, 57, 60, 72, 75, 76, 90, 95, 100, 108, 114, 120, 135, 150, 152, 171, 180, 190, 199, 200, 216, 225, 228, 270, 285, 300, 342, 360, 380, 398, 450, 456, 475, 513, 540, 570, 597, 600, 675, 684, 760, 796, 855, 900, 950, 995, 1026, 1080, 1140, 1194, 1350, 1368, 1425, 1592, 1710, 1791, 1800, 1900, 1990, 2052, 2280, 2388, 2565, 2700, 2850, 2985, 3420, 3582, 3781, 3800, 3980, 4104, 4275, 4776, 4975, 5130, 5373, 5400, 5700, 5970, 6840, 7164, 7562, 7960, 8550, 8955, 9950, 10260, 10746, 11343, 11400, 11940, 12825, 14328, 14925, 15124, 17100, 17910, 18905, 19900, 20520, 21492, 22686, 23880, 25650, 26865, 29850, 30248, 34029, 34200, 35820, 37810, 39800, 42984, 44775, 45372, 51300, 53730, 56715, 59700, 68058, 71640, 75620, 89550, 90744, 94525, 102087, 102600, 107460, 113430, 119400, 134325, 136116, 151240, 170145, 179100, 189050, 204174, 214920, 226860, 268650, 272232, 283575, 340290, 358200, 378100, 408348, 453720, 510435, 537300, 567150, 680580, 756200, 816696, 850725, 1020870, 1074600, 1134300, 1361160, 1701450, 2041740, 2268600, 2552175, 3402900, 4083480, 5104350, 6805800, 10208700, 20417400]

約数ペア:

[(1, 20417400), (2, 10208700), (3, 6805800), (4, 5104350), (5, 4083480), (6, 3402900), (8, 2552175), (9, 2268600), (10, 2041740), (12, 1701450), (15, 1361160), (18, 1134300), (19, 1074600), (20, 1020870), (24, 850725), (25, 816696), (27, 756200), (30, 680580), (36, 567150), (38, 537300), (40, 510435), (45, 453720), (50, 408348), (54, 378100), (57, 358200), (60, 340290), (72, 283575), (75, 272232), (76, 268650), (90, 226860), (95, 214920), (100, 204174), (108, 189050), (114, 179100), (120, 170145), (135, 151240), (150, 136116), (152, 134325), (171, 119400), (180, 113430), (190, 107460), (199, 102600), (200, 102087), (216, 94525), (225, 90744), (228, 89550), (270, 75620), (285, 71640), (300, 68058), (342, 59700), (360, 56715), (380, 53730), (398, 51300), (450, 45372), (456, 44775), (475, 42984), (513, 39800), (540, 37810), (570, 35820), (597, 34200), (600, 34029), (675, 30248), (684, 29850), (760, 26865), (796, 25650), (855, 23880), (900, 22686), (950, 21492), (995, 20520), (1026, 19900), (1080, 18905), (1140, 17910), (1194, 17100), (1350, 15124), (1368, 14925), (1425, 14328), (1592, 12825), (1710, 11940), (1791, 11400), (1800, 11343), (1900, 10746), (1990, 10260), (2052, 9950), (2280, 8955), (2388, 8550), (2565, 7960), (2700, 7562), (2850, 7164), (2985, 6840), (3420, 5970), (3582, 5700), (3781, 5400), (3800, 5373), (3980, 5130), (4104, 4975), (4275, 4776)]