20758320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2621}}^1$

素因数の和:2651

約数の個数: 120

約数和(自身を含む): 76079952

約数和(自身を除く): 55321632

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2621, 2640, 3960, 5242, 7863, 7920, 10484, 13105, 15726, 20968, 23589, 26210, 28831, 31452, 39315, 41936, 47178, 52420, 57662, 62904, 78630, 86493, 94356, 104840, 115324, 117945, 125808, 144155, 157260, 172986, 188712, 209680, 230648, 235890, 259479, 288310, 314520, 345972, 377424, 432465, 461296, 471780, 518958, 576620, 629040, 691944, 864930, 943560, 1037916, 1153240, 1297395, 1383888, 1729860, 1887120, 2075832, 2306480, 2594790, 3459720, 4151664, 5189580, 6919440, 10379160, 20758320]

約数ペア:

[(1, 20758320), (2, 10379160), (3, 6919440), (4, 5189580), (5, 4151664), (6, 3459720), (8, 2594790), (9, 2306480), (10, 2075832), (11, 1887120), (12, 1729860), (15, 1383888), (16, 1297395), (18, 1153240), (20, 1037916), (22, 943560), (24, 864930), (30, 691944), (33, 629040), (36, 576620), (40, 518958), (44, 471780), (45, 461296), (48, 432465), (55, 377424), (60, 345972), (66, 314520), (72, 288310), (80, 259479), (88, 235890), (90, 230648), (99, 209680), (110, 188712), (120, 172986), (132, 157260), (144, 144155), (165, 125808), (176, 117945), (180, 115324), (198, 104840), (220, 94356), (240, 86493), (264, 78630), (330, 62904), (360, 57662), (396, 52420), (440, 47178), (495, 41936), (528, 39315), (660, 31452), (720, 28831), (792, 26210), (880, 23589), (990, 20968), (1320, 15726), (1584, 13105), (1980, 10484), (2621, 7920), (2640, 7863), (3960, 5242)]