19988912160

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{661009}}^1$

素因数の和:661040

約数の個数: 192

約数和(自身を含む): 79955769600

約数和(自身を除く): 59966857440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 30240, 661009, 1322018, 1983027, 2644036, 3305045, 3966054, 4627063, 5288072, 5949081, 6610090, 7932108, 9254126, 9915135, 10576144, 11898162, 13220180, 13881189, 15864216, 17847243, 18508252, 19830270, 21152288, 23135315, 23796324, 26440360, 27762378, 29745405, 31728432, 35694486, 37016504, 39660540, 41643567, 46270630, 47592648, 52880720, 55524756, 59490810, 63456864, 69405945, 71388972, 74033008, 79321080, 83287134, 89236215, 92541260, 95185296, 105761440, 111049512, 118981620, 124930701, 138811890, 142777944, 148066016, 158642160, 166574268, 178472430, 185082520, 190370592, 208217835, 222099024, 237963240, 249861402, 277623780, 285555888, 317284320, 333148536, 356944860, 370165040, 416435670, 444198048, 475926480, 499722804, 555247560, 571111776, 624653505, 666297072, 713889720, 740330080, 832871340, 951852960, 999445608, 1110495120, 1249307010, 1332594144, 1427779440, 1665742680, 1998891216, 2220990240, 2498614020, 2855558880, 3331485360, 3997782432, 4997228040, 6662970720, 9994456080, 19988912160]

約数ペア:

[(1, 19988912160), (2, 9994456080), (3, 6662970720), (4, 4997228040), (5, 3997782432), (6, 3331485360), (7, 2855558880), (8, 2498614020), (9, 2220990240), (10, 1998891216), (12, 1665742680), (14, 1427779440), (15, 1332594144), (16, 1249307010), (18, 1110495120), (20, 999445608), (21, 951852960), (24, 832871340), (27, 740330080), (28, 713889720), (30, 666297072), (32, 624653505), (35, 571111776), (36, 555247560), (40, 499722804), (42, 475926480), (45, 444198048), (48, 416435670), (54, 370165040), (56, 356944860), (60, 333148536), (63, 317284320), (70, 285555888), (72, 277623780), (80, 249861402), (84, 237963240), (90, 222099024), (96, 208217835), (105, 190370592), (108, 185082520), (112, 178472430), (120, 166574268), (126, 158642160), (135, 148066016), (140, 142777944), (144, 138811890), (160, 124930701), (168, 118981620), (180, 111049512), (189, 105761440), (210, 95185296), (216, 92541260), (224, 89236215), (240, 83287134), (252, 79321080), (270, 74033008), (280, 71388972), (288, 69405945), (315, 63456864), (336, 59490810), (360, 55524756), (378, 52880720), (420, 47592648), (432, 46270630), (480, 41643567), (504, 39660540), (540, 37016504), (560, 35694486), (630, 31728432), (672, 29745405), (720, 27762378), (756, 26440360), (840, 23796324), (864, 23135315), (945, 21152288), (1008, 19830270), (1080, 18508252), (1120, 17847243), (1260, 15864216), (1440, 13881189), (1512, 13220180), (1680, 11898162), (1890, 10576144), (2016, 9915135), (2160, 9254126), (2520, 7932108), (3024, 6610090), (3360, 5949081), (3780, 5288072), (4320, 4627063), (5040, 3966054), (6048, 3305045), (7560, 2644036), (10080, 1983027), (15120, 1322018), (30240, 661009)]