20108520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{433}}^1$

素因数の和:496

約数の個数: 128

約数和(自身を含む): 68745600

約数和(自身を除く): 48637080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 43, 45, 54, 60, 72, 86, 90, 108, 120, 129, 135, 172, 180, 215, 216, 258, 270, 344, 360, 387, 430, 433, 516, 540, 645, 774, 860, 866, 1032, 1080, 1161, 1290, 1299, 1548, 1720, 1732, 1935, 2165, 2322, 2580, 2598, 3096, 3464, 3870, 3897, 4330, 4644, 5160, 5196, 5805, 6495, 7740, 7794, 8660, 9288, 10392, 11610, 11691, 12990, 15480, 15588, 17320, 18619, 19485, 23220, 23382, 25980, 31176, 37238, 38970, 46440, 46764, 51960, 55857, 58455, 74476, 77940, 93095, 93528, 111714, 116910, 148952, 155880, 167571, 186190, 223428, 233820, 279285, 335142, 372380, 446856, 467640, 502713, 558570, 670284, 744760, 837855, 1005426, 1117140, 1340568, 1675710, 2010852, 2234280, 2513565, 3351420, 4021704, 5027130, 6702840, 10054260, 20108520]

約数ペア:

[(1, 20108520), (2, 10054260), (3, 6702840), (4, 5027130), (5, 4021704), (6, 3351420), (8, 2513565), (9, 2234280), (10, 2010852), (12, 1675710), (15, 1340568), (18, 1117140), (20, 1005426), (24, 837855), (27, 744760), (30, 670284), (36, 558570), (40, 502713), (43, 467640), (45, 446856), (54, 372380), (60, 335142), (72, 279285), (86, 233820), (90, 223428), (108, 186190), (120, 167571), (129, 155880), (135, 148952), (172, 116910), (180, 111714), (215, 93528), (216, 93095), (258, 77940), (270, 74476), (344, 58455), (360, 55857), (387, 51960), (430, 46764), (433, 46440), (516, 38970), (540, 37238), (645, 31176), (774, 25980), (860, 23382), (866, 23220), (1032, 19485), (1080, 18619), (1161, 17320), (1290, 15588), (1299, 15480), (1548, 12990), (1720, 11691), (1732, 11610), (1935, 10392), (2165, 9288), (2322, 8660), (2580, 7794), (2598, 7740), (3096, 6495), (3464, 5805), (3870, 5196), (3897, 5160), (4330, 4644)]