9989820

素因数分解:

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

素因数の和:184

約数の個数: 144

約数和(自身を含む): 33546240

約数和(自身を除く): 23556420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 30, 36, 38, 45, 46, 57, 60, 69, 76, 90, 92, 95, 114, 115, 127, 138, 171, 180, 190, 207, 228, 230, 254, 276, 285, 342, 345, 380, 381, 414, 437, 460, 508, 570, 635, 684, 690, 762, 828, 855, 874, 1035, 1140, 1143, 1270, 1311, 1380, 1524, 1710, 1748, 1905, 2070, 2185, 2286, 2413, 2540, 2622, 2921, 3420, 3810, 3933, 4140, 4370, 4572, 4826, 5244, 5715, 5842, 6555, 7239, 7620, 7866, 8740, 8763, 9652, 11430, 11684, 12065, 13110, 14478, 14605, 15732, 17526, 19665, 21717, 22860, 24130, 26220, 26289, 28956, 29210, 35052, 36195, 39330, 43434, 43815, 48260, 52578, 55499, 58420, 72390, 78660, 86868, 87630, 105156, 108585, 110998, 131445, 144780, 166497, 175260, 217170, 221996, 262890, 277495, 332994, 434340, 499491, 525780, 554990, 665988, 832485, 998982, 1109980, 1664970, 1997964, 2497455, 3329940, 4994910, 9989820]

約数ペア:

[(1, 9989820), (2, 4994910), (3, 3329940), (4, 2497455), (5, 1997964), (6, 1664970), (9, 1109980), (10, 998982), (12, 832485), (15, 665988), (18, 554990), (19, 525780), (20, 499491), (23, 434340), (30, 332994), (36, 277495), (38, 262890), (45, 221996), (46, 217170), (57, 175260), (60, 166497), (69, 144780), (76, 131445), (90, 110998), (92, 108585), (95, 105156), (114, 87630), (115, 86868), (127, 78660), (138, 72390), (171, 58420), (180, 55499), (190, 52578), (207, 48260), (228, 43815), (230, 43434), (254, 39330), (276, 36195), (285, 35052), (342, 29210), (345, 28956), (380, 26289), (381, 26220), (414, 24130), (437, 22860), (460, 21717), (508, 19665), (570, 17526), (635, 15732), (684, 14605), (690, 14478), (762, 13110), (828, 12065), (855, 11684), (874, 11430), (1035, 9652), (1140, 8763), (1143, 8740), (1270, 7866), (1311, 7620), (1380, 7239), (1524, 6555), (1710, 5842), (1748, 5715), (1905, 5244), (2070, 4826), (2185, 4572), (2286, 4370), (2413, 4140), (2540, 3933), (2622, 3810), (2921, 3420)]