19979640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:186

約数の個数: 192

約数和(自身を含む): 71884800

約数和(自身を除く): 51905160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 23, 24, 30, 36, 38, 40, 45, 46, 57, 60, 69, 72, 76, 90, 92, 95, 114, 115, 120, 127, 138, 152, 171, 180, 184, 190, 207, 228, 230, 254, 276, 285, 342, 345, 360, 380, 381, 414, 437, 456, 460, 508, 552, 570, 635, 684, 690, 760, 762, 828, 855, 874, 920, 1016, 1035, 1140, 1143, 1270, 1311, 1368, 1380, 1524, 1656, 1710, 1748, 1905, 2070, 2185, 2280, 2286, 2413, 2540, 2622, 2760, 2921, 3048, 3420, 3496, 3810, 3933, 4140, 4370, 4572, 4826, 5080, 5244, 5715, 5842, 6555, 6840, 7239, 7620, 7866, 8280, 8740, 8763, 9144, 9652, 10488, 11430, 11684, 12065, 13110, 14478, 14605, 15240, 15732, 17480, 17526, 19304, 19665, 21717, 22860, 23368, 24130, 26220, 26289, 28956, 29210, 31464, 35052, 36195, 39330, 43434, 43815, 45720, 48260, 52440, 52578, 55499, 57912, 58420, 70104, 72390, 78660, 86868, 87630, 96520, 105156, 108585, 110998, 116840, 131445, 144780, 157320, 166497, 173736, 175260, 210312, 217170, 221996, 262890, 277495, 289560, 332994, 350520, 434340, 443992, 499491, 525780, 554990, 665988, 832485, 868680, 998982, 1051560, 1109980, 1331976, 1664970, 1997964, 2219960, 2497455, 3329940, 3995928, 4994910, 6659880, 9989820, 19979640]

約数ペア:

[(1, 19979640), (2, 9989820), (3, 6659880), (4, 4994910), (5, 3995928), (6, 3329940), (8, 2497455), (9, 2219960), (10, 1997964), (12, 1664970), (15, 1331976), (18, 1109980), (19, 1051560), (20, 998982), (23, 868680), (24, 832485), (30, 665988), (36, 554990), (38, 525780), (40, 499491), (45, 443992), (46, 434340), (57, 350520), (60, 332994), (69, 289560), (72, 277495), (76, 262890), (90, 221996), (92, 217170), (95, 210312), (114, 175260), (115, 173736), (120, 166497), (127, 157320), (138, 144780), (152, 131445), (171, 116840), (180, 110998), (184, 108585), (190, 105156), (207, 96520), (228, 87630), (230, 86868), (254, 78660), (276, 72390), (285, 70104), (342, 58420), (345, 57912), (360, 55499), (380, 52578), (381, 52440), (414, 48260), (437, 45720), (456, 43815), (460, 43434), (508, 39330), (552, 36195), (570, 35052), (635, 31464), (684, 29210), (690, 28956), (760, 26289), (762, 26220), (828, 24130), (855, 23368), (874, 22860), (920, 21717), (1016, 19665), (1035, 19304), (1140, 17526), (1143, 17480), (1270, 15732), (1311, 15240), (1368, 14605), (1380, 14478), (1524, 13110), (1656, 12065), (1710, 11684), (1748, 11430), (1905, 10488), (2070, 9652), (2185, 9144), (2280, 8763), (2286, 8740), (2413, 8280), (2540, 7866), (2622, 7620), (2760, 7239), (2921, 6840), (3048, 6555), (3420, 5842), (3496, 5715), (3810, 5244), (3933, 5080), (4140, 4826), (4370, 4572)]