20206440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{37}}^2\times {\mathrm{41}}^1$

素因数の和:132

約数の個数: 144

約数和(自身を含む): 69139980

約数和(自身を除く): 48933540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 37, 40, 41, 45, 60, 72, 74, 82, 90, 111, 120, 123, 148, 164, 180, 185, 205, 222, 246, 296, 328, 333, 360, 369, 370, 410, 444, 492, 555, 615, 666, 738, 740, 820, 888, 984, 1110, 1230, 1332, 1369, 1476, 1480, 1517, 1640, 1665, 1845, 2220, 2460, 2664, 2738, 2952, 3034, 3330, 3690, 4107, 4440, 4551, 4920, 5476, 6068, 6660, 6845, 7380, 7585, 8214, 9102, 10952, 12136, 12321, 13320, 13653, 13690, 14760, 15170, 16428, 18204, 20535, 22755, 24642, 27306, 27380, 30340, 32856, 36408, 41070, 45510, 49284, 54612, 54760, 56129, 60680, 61605, 68265, 82140, 91020, 98568, 109224, 112258, 123210, 136530, 164280, 168387, 182040, 224516, 246420, 273060, 280645, 336774, 449032, 492840, 505161, 546120, 561290, 673548, 841935, 1010322, 1122580, 1347096, 1683870, 2020644, 2245160, 2525805, 3367740, 4041288, 5051610, 6735480, 10103220, 20206440]

約数ペア:

[(1, 20206440), (2, 10103220), (3, 6735480), (4, 5051610), (5, 4041288), (6, 3367740), (8, 2525805), (9, 2245160), (10, 2020644), (12, 1683870), (15, 1347096), (18, 1122580), (20, 1010322), (24, 841935), (30, 673548), (36, 561290), (37, 546120), (40, 505161), (41, 492840), (45, 449032), (60, 336774), (72, 280645), (74, 273060), (82, 246420), (90, 224516), (111, 182040), (120, 168387), (123, 164280), (148, 136530), (164, 123210), (180, 112258), (185, 109224), (205, 98568), (222, 91020), (246, 82140), (296, 68265), (328, 61605), (333, 60680), (360, 56129), (369, 54760), (370, 54612), (410, 49284), (444, 45510), (492, 41070), (555, 36408), (615, 32856), (666, 30340), (738, 27380), (740, 27306), (820, 24642), (888, 22755), (984, 20535), (1110, 18204), (1230, 16428), (1332, 15170), (1369, 14760), (1476, 13690), (1480, 13653), (1517, 13320), (1640, 12321), (1665, 12136), (1845, 10952), (2220, 9102), (2460, 8214), (2664, 7585), (2738, 7380), (2952, 6845), (3034, 6660), (3330, 6068), (3690, 5476), (4107, 4920), (4440, 4551)]