217081728

素因数分解:

$2^7\times 3^3\times {\mathrm{23}}^1\times {\mathrm{2731}}^1$

素因数の和:2777

約数の個数: 128

約数和(自身を含む): 668793600

約数和(自身を除く): 451711872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 27, 32, 36, 46, 48, 54, 64, 69, 72, 92, 96, 108, 128, 138, 144, 184, 192, 207, 216, 276, 288, 368, 384, 414, 432, 552, 576, 621, 736, 828, 864, 1104, 1152, 1242, 1472, 1656, 1728, 2208, 2484, 2731, 2944, 3312, 3456, 4416, 4968, 5462, 6624, 8193, 8832, 9936, 10924, 13248, 16386, 19872, 21848, 24579, 26496, 32772, 39744, 43696, 49158, 62813, 65544, 73737, 79488, 87392, 98316, 125626, 131088, 147474, 174784, 188439, 196632, 251252, 262176, 294948, 349568, 376878, 393264, 502504, 524352, 565317, 589896, 753756, 786528, 1005008, 1048704, 1130634, 1179792, 1507512, 1573056, 1695951, 2010016, 2261268, 2359584, 3015024, 3146112, 3391902, 4020032, 4522536, 4719168, 6030048, 6783804, 8040064, 9045072, 9438336, 12060096, 13567608, 18090144, 24120192, 27135216, 36180288, 54270432, 72360576, 108540864, 217081728]

約数ペア:

[(1, 217081728), (2, 108540864), (3, 72360576), (4, 54270432), (6, 36180288), (8, 27135216), (9, 24120192), (12, 18090144), (16, 13567608), (18, 12060096), (23, 9438336), (24, 9045072), (27, 8040064), (32, 6783804), (36, 6030048), (46, 4719168), (48, 4522536), (54, 4020032), (64, 3391902), (69, 3146112), (72, 3015024), (92, 2359584), (96, 2261268), (108, 2010016), (128, 1695951), (138, 1573056), (144, 1507512), (184, 1179792), (192, 1130634), (207, 1048704), (216, 1005008), (276, 786528), (288, 753756), (368, 589896), (384, 565317), (414, 524352), (432, 502504), (552, 393264), (576, 376878), (621, 349568), (736, 294948), (828, 262176), (864, 251252), (1104, 196632), (1152, 188439), (1242, 174784), (1472, 147474), (1656, 131088), (1728, 125626), (2208, 98316), (2484, 87392), (2731, 79488), (2944, 73737), (3312, 65544), (3456, 62813), (4416, 49158), (4968, 43696), (5462, 39744), (6624, 32772), (8193, 26496), (8832, 24579), (9936, 21848), (10924, 19872), (13248, 16386)]