20100528

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1$

素因数の和:81

約数の個数: 240

約数和(自身を含む): 73090560

約数和(自身を除く): 52990032

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 23, 24, 27, 28, 34, 36, 42, 46, 48, 51, 54, 56, 63, 68, 69, 72, 84, 92, 102, 108, 112, 119, 126, 136, 138, 144, 153, 161, 168, 184, 189, 204, 207, 216, 238, 252, 272, 276, 289, 306, 322, 336, 357, 368, 378, 391, 408, 414, 432, 459, 476, 483, 504, 552, 578, 612, 621, 644, 714, 756, 782, 816, 828, 867, 918, 952, 966, 1008, 1071, 1104, 1156, 1173, 1224, 1242, 1288, 1428, 1449, 1512, 1564, 1656, 1734, 1836, 1904, 1932, 2023, 2142, 2312, 2346, 2448, 2484, 2576, 2601, 2737, 2856, 2898, 3024, 3128, 3213, 3312, 3468, 3519, 3672, 3864, 4046, 4284, 4347, 4624, 4692, 4968, 5202, 5474, 5712, 5796, 6069, 6256, 6426, 6647, 6936, 7038, 7344, 7728, 7803, 8092, 8211, 8568, 8694, 9384, 9936, 10404, 10557, 10948, 11592, 12138, 12852, 13294, 13872, 14076, 15606, 16184, 16422, 17136, 17388, 18207, 18768, 19941, 20808, 21114, 21896, 23184, 24276, 24633, 25704, 26588, 28152, 31212, 32368, 32844, 34776, 36414, 39882, 41616, 42228, 43792, 46529, 48552, 49266, 51408, 53176, 54621, 56304, 59823, 62424, 65688, 69552, 72828, 73899, 79764, 84456, 93058, 97104, 98532, 106352, 109242, 119646, 124848, 131376, 139587, 145656, 147798, 159528, 168912, 179469, 186116, 197064, 218484, 239292, 279174, 291312, 295596, 319056, 358938, 372232, 394128, 418761, 436968, 478584, 558348, 591192, 717876, 744464, 837522, 873936, 957168, 1116696, 1182384, 1256283, 1435752, 1675044, 2233392, 2512566, 2871504, 3350088, 5025132, 6700176, 10050264, 20100528]

約数ペア:

[(1, 20100528), (2, 10050264), (3, 6700176), (4, 5025132), (6, 3350088), (7, 2871504), (8, 2512566), (9, 2233392), (12, 1675044), (14, 1435752), (16, 1256283), (17, 1182384), (18, 1116696), (21, 957168), (23, 873936), (24, 837522), (27, 744464), (28, 717876), (34, 591192), (36, 558348), (42, 478584), (46, 436968), (48, 418761), (51, 394128), (54, 372232), (56, 358938), (63, 319056), (68, 295596), (69, 291312), (72, 279174), (84, 239292), (92, 218484), (102, 197064), (108, 186116), (112, 179469), (119, 168912), (126, 159528), (136, 147798), (138, 145656), (144, 139587), (153, 131376), (161, 124848), (168, 119646), (184, 109242), (189, 106352), (204, 98532), (207, 97104), (216, 93058), (238, 84456), (252, 79764), (272, 73899), (276, 72828), (289, 69552), (306, 65688), (322, 62424), (336, 59823), (357, 56304), (368, 54621), (378, 53176), (391, 51408), (408, 49266), (414, 48552), (432, 46529), (459, 43792), (476, 42228), (483, 41616), (504, 39882), (552, 36414), (578, 34776), (612, 32844), (621, 32368), (644, 31212), (714, 28152), (756, 26588), (782, 25704), (816, 24633), (828, 24276), (867, 23184), (918, 21896), (952, 21114), (966, 20808), (1008, 19941), (1071, 18768), (1104, 18207), (1156, 17388), (1173, 17136), (1224, 16422), (1242, 16184), (1288, 15606), (1428, 14076), (1449, 13872), (1512, 13294), (1564, 12852), (1656, 12138), (1734, 11592), (1836, 10948), (1904, 10557), (1932, 10404), (2023, 9936), (2142, 9384), (2312, 8694), (2346, 8568), (2448, 8211), (2484, 8092), (2576, 7803), (2601, 7728), (2737, 7344), (2856, 7038), (2898, 6936), (3024, 6647), (3128, 6426), (3213, 6256), (3312, 6069), (3468, 5796), (3519, 5712), (3672, 5474), (3864, 5202), (4046, 4968), (4284, 4692), (4347, 4624)]