19896480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{337}}^1$

素因数の和:399

約数の個数: 144

約数和(自身を含む): 69759144

約数和(自身を除く): 49862664

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 72, 80, 82, 90, 96, 120, 123, 144, 160, 164, 180, 205, 240, 246, 288, 328, 337, 360, 369, 410, 480, 492, 615, 656, 674, 720, 738, 820, 984, 1011, 1230, 1312, 1348, 1440, 1476, 1640, 1685, 1845, 1968, 2022, 2460, 2696, 2952, 3033, 3280, 3370, 3690, 3936, 4044, 4920, 5055, 5392, 5904, 6066, 6560, 6740, 7380, 8088, 9840, 10110, 10784, 11808, 12132, 13480, 13817, 14760, 15165, 16176, 19680, 20220, 24264, 26960, 27634, 29520, 30330, 32352, 40440, 41451, 48528, 53920, 55268, 59040, 60660, 69085, 80880, 82902, 97056, 110536, 121320, 124353, 138170, 161760, 165804, 207255, 221072, 242640, 248706, 276340, 331608, 414510, 442144, 485280, 497412, 552680, 621765, 663216, 829020, 994824, 1105360, 1243530, 1326432, 1658040, 1989648, 2210720, 2487060, 3316080, 3979296, 4974120, 6632160, 9948240, 19896480]

約数ペア:

[(1, 19896480), (2, 9948240), (3, 6632160), (4, 4974120), (5, 3979296), (6, 3316080), (8, 2487060), (9, 2210720), (10, 1989648), (12, 1658040), (15, 1326432), (16, 1243530), (18, 1105360), (20, 994824), (24, 829020), (30, 663216), (32, 621765), (36, 552680), (40, 497412), (41, 485280), (45, 442144), (48, 414510), (60, 331608), (72, 276340), (80, 248706), (82, 242640), (90, 221072), (96, 207255), (120, 165804), (123, 161760), (144, 138170), (160, 124353), (164, 121320), (180, 110536), (205, 97056), (240, 82902), (246, 80880), (288, 69085), (328, 60660), (337, 59040), (360, 55268), (369, 53920), (410, 48528), (480, 41451), (492, 40440), (615, 32352), (656, 30330), (674, 29520), (720, 27634), (738, 26960), (820, 24264), (984, 20220), (1011, 19680), (1230, 16176), (1312, 15165), (1348, 14760), (1440, 13817), (1476, 13480), (1640, 12132), (1685, 11808), (1845, 10784), (1968, 10110), (2022, 9840), (2460, 8088), (2696, 7380), (2952, 6740), (3033, 6560), (3280, 6066), (3370, 5904), (3690, 5392), (3936, 5055), (4044, 4920)]