19978281120

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{312943}}^1$

素因数の和:312987

約数の個数: 192

約数和(自身を含む): 75707412480

約数和(自身を除く): 55729131360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 133, 140, 152, 160, 168, 190, 210, 224, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 480, 532, 560, 570, 608, 665, 672, 760, 798, 840, 912, 1064, 1120, 1140, 1330, 1520, 1596, 1680, 1824, 1995, 2128, 2280, 2660, 3040, 3192, 3360, 3990, 4256, 4560, 5320, 6384, 7980, 9120, 10640, 12768, 15960, 21280, 31920, 63840, 312943, 625886, 938829, 1251772, 1564715, 1877658, 2190601, 2503544, 3129430, 3755316, 4381202, 4694145, 5007088, 5945917, 6258860, 6571803, 7510632, 8762404, 9388290, 10014176, 10953005, 11891834, 12517720, 13143606, 15021264, 17524808, 17837751, 18776580, 21906010, 23783668, 25035440, 26287212, 29729585, 30042528, 32859015, 35049616, 35675502, 37553160, 41621419, 43812020, 47567336, 50070880, 52574424, 59459170, 65718030, 70099232, 71351004, 75106320, 83242838, 87624040, 89188755, 95134672, 105148848, 118918340, 124864257, 131436060, 142702008, 150212640, 166485676, 175248080, 178377510, 190269344, 208107095, 210297696, 237836680, 249728514, 262872120, 285404016, 332971352, 350496160, 356755020, 416214190, 475673360, 499457028, 525744240, 570808032, 624321285, 665942704, 713510040, 832428380, 951346720, 998914056, 1051488480, 1248642570, 1331885408, 1427020080, 1664856760, 1997828112, 2497285140, 2854040160, 3329713520, 3995656224, 4994570280, 6659427040, 9989140560, 19978281120]

約数ペア:

[(1, 19978281120), (2, 9989140560), (3, 6659427040), (4, 4994570280), (5, 3995656224), (6, 3329713520), (7, 2854040160), (8, 2497285140), (10, 1997828112), (12, 1664856760), (14, 1427020080), (15, 1331885408), (16, 1248642570), (19, 1051488480), (20, 998914056), (21, 951346720), (24, 832428380), (28, 713510040), (30, 665942704), (32, 624321285), (35, 570808032), (38, 525744240), (40, 499457028), (42, 475673360), (48, 416214190), (56, 356755020), (57, 350496160), (60, 332971352), (70, 285404016), (76, 262872120), (80, 249728514), (84, 237836680), (95, 210297696), (96, 208107095), (105, 190269344), (112, 178377510), (114, 175248080), (120, 166485676), (133, 150212640), (140, 142702008), (152, 131436060), (160, 124864257), (168, 118918340), (190, 105148848), (210, 95134672), (224, 89188755), (228, 87624040), (240, 83242838), (266, 75106320), (280, 71351004), (285, 70099232), (304, 65718030), (336, 59459170), (380, 52574424), (399, 50070880), (420, 47567336), (456, 43812020), (480, 41621419), (532, 37553160), (560, 35675502), (570, 35049616), (608, 32859015), (665, 30042528), (672, 29729585), (760, 26287212), (798, 25035440), (840, 23783668), (912, 21906010), (1064, 18776580), (1120, 17837751), (1140, 17524808), (1330, 15021264), (1520, 13143606), (1596, 12517720), (1680, 11891834), (1824, 10953005), (1995, 10014176), (2128, 9388290), (2280, 8762404), (2660, 7510632), (3040, 6571803), (3192, 6258860), (3360, 5945917), (3990, 5007088), (4256, 4694145), (4560, 4381202), (5320, 3755316), (6384, 3129430), (7980, 2503544), (9120, 2190601), (10640, 1877658), (12768, 1564715), (15960, 1251772), (21280, 938829), (31920, 625886), (63840, 312943)]