20346480

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{367}}^1$

素因数の和:404

約数の個数: 240

約数和(自身を含む): 85423104

約数和(自身を除く): 65076624

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 165, 168, 176, 180, 198, 210, 220, 231, 240, 252, 264, 280, 308, 315, 330, 336, 360, 367, 385, 396, 420, 440, 462, 495, 504, 528, 560, 616, 630, 660, 693, 720, 734, 770, 792, 840, 880, 924, 990, 1008, 1101, 1155, 1232, 1260, 1320, 1386, 1468, 1540, 1584, 1680, 1835, 1848, 1980, 2202, 2310, 2520, 2569, 2640, 2772, 2936, 3080, 3303, 3465, 3670, 3696, 3960, 4037, 4404, 4620, 5040, 5138, 5505, 5544, 5872, 6160, 6606, 6930, 7340, 7707, 7920, 8074, 8808, 9240, 10276, 11010, 11088, 12111, 12845, 13212, 13860, 14680, 15414, 16148, 16515, 17616, 18480, 20185, 20552, 22020, 23121, 24222, 25690, 26424, 27720, 28259, 29360, 30828, 32296, 33030, 36333, 38535, 40370, 41104, 44040, 46242, 48444, 51380, 52848, 55440, 56518, 60555, 61656, 64592, 66060, 72666, 77070, 80740, 84777, 88080, 92484, 96888, 102760, 113036, 115605, 121110, 123312, 132120, 141295, 145332, 154140, 161480, 169554, 181665, 184968, 193776, 205520, 226072, 231210, 242220, 254331, 264240, 282590, 290664, 308280, 322960, 339108, 363330, 369936, 423885, 452144, 462420, 484440, 508662, 565180, 581328, 616560, 678216, 726660, 847770, 924840, 968880, 1017324, 1130360, 1271655, 1356432, 1453320, 1695540, 1849680, 2034648, 2260720, 2543310, 2906640, 3391080, 4069296, 5086620, 6782160, 10173240, 20346480]

約数ペア:

[(1, 20346480), (2, 10173240), (3, 6782160), (4, 5086620), (5, 4069296), (6, 3391080), (7, 2906640), (8, 2543310), (9, 2260720), (10, 2034648), (11, 1849680), (12, 1695540), (14, 1453320), (15, 1356432), (16, 1271655), (18, 1130360), (20, 1017324), (21, 968880), (22, 924840), (24, 847770), (28, 726660), (30, 678216), (33, 616560), (35, 581328), (36, 565180), (40, 508662), (42, 484440), (44, 462420), (45, 452144), (48, 423885), (55, 369936), (56, 363330), (60, 339108), (63, 322960), (66, 308280), (70, 290664), (72, 282590), (77, 264240), (80, 254331), (84, 242220), (88, 231210), (90, 226072), (99, 205520), (105, 193776), (110, 184968), (112, 181665), (120, 169554), (126, 161480), (132, 154140), (140, 145332), (144, 141295), (154, 132120), (165, 123312), (168, 121110), (176, 115605), (180, 113036), (198, 102760), (210, 96888), (220, 92484), (231, 88080), (240, 84777), (252, 80740), (264, 77070), (280, 72666), (308, 66060), (315, 64592), (330, 61656), (336, 60555), (360, 56518), (367, 55440), (385, 52848), (396, 51380), (420, 48444), (440, 46242), (462, 44040), (495, 41104), (504, 40370), (528, 38535), (560, 36333), (616, 33030), (630, 32296), (660, 30828), (693, 29360), (720, 28259), (734, 27720), (770, 26424), (792, 25690), (840, 24222), (880, 23121), (924, 22020), (990, 20552), (1008, 20185), (1101, 18480), (1155, 17616), (1232, 16515), (1260, 16148), (1320, 15414), (1386, 14680), (1468, 13860), (1540, 13212), (1584, 12845), (1680, 12111), (1835, 11088), (1848, 11010), (1980, 10276), (2202, 9240), (2310, 8808), (2520, 8074), (2569, 7920), (2640, 7707), (2772, 7340), (2936, 6930), (3080, 6606), (3303, 6160), (3465, 5872), (3670, 5544), (3696, 5505), (3960, 5138), (4037, 5040), (4404, 4620)]