217540960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:325

約数の個数: 192

約数和(自身を含む): 644861952

約数和(自身を除く): 427320992

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 67, 70, 80, 91, 104, 112, 130, 134, 140, 160, 182, 208, 223, 224, 260, 268, 280, 335, 364, 416, 446, 455, 469, 520, 536, 560, 670, 728, 871, 892, 910, 938, 1040, 1072, 1115, 1120, 1340, 1456, 1561, 1742, 1784, 1820, 1876, 2080, 2144, 2230, 2345, 2680, 2899, 2912, 3122, 3484, 3568, 3640, 3752, 4355, 4460, 4690, 5360, 5798, 6097, 6244, 6968, 7136, 7280, 7504, 7805, 8710, 8920, 9380, 10720, 11596, 12194, 12488, 13936, 14495, 14560, 14941, 15008, 15610, 17420, 17840, 18760, 20293, 23192, 24388, 24976, 27872, 28990, 29882, 30485, 31220, 34840, 35680, 37520, 40586, 46384, 48776, 49952, 57980, 59764, 60970, 62440, 69680, 74705, 75040, 81172, 92768, 97552, 101465, 104587, 115960, 119528, 121940, 124880, 139360, 149410, 162344, 194233, 195104, 202930, 209174, 231920, 239056, 243880, 249760, 298820, 324688, 388466, 405860, 418348, 463840, 478112, 487760, 522935, 597640, 649376, 776932, 811720, 836696, 971165, 975520, 1045870, 1195280, 1359631, 1553864, 1623440, 1673392, 1942330, 2091740, 2390560, 2719262, 3107728, 3246880, 3346784, 3884660, 4183480, 5438524, 6215456, 6798155, 7769320, 8366960, 10877048, 13596310, 15538640, 16733920, 21754096, 27192620, 31077280, 43508192, 54385240, 108770480, 217540960]

約数ペア:

[(1, 217540960), (2, 108770480), (4, 54385240), (5, 43508192), (7, 31077280), (8, 27192620), (10, 21754096), (13, 16733920), (14, 15538640), (16, 13596310), (20, 10877048), (26, 8366960), (28, 7769320), (32, 6798155), (35, 6215456), (40, 5438524), (52, 4183480), (56, 3884660), (65, 3346784), (67, 3246880), (70, 3107728), (80, 2719262), (91, 2390560), (104, 2091740), (112, 1942330), (130, 1673392), (134, 1623440), (140, 1553864), (160, 1359631), (182, 1195280), (208, 1045870), (223, 975520), (224, 971165), (260, 836696), (268, 811720), (280, 776932), (335, 649376), (364, 597640), (416, 522935), (446, 487760), (455, 478112), (469, 463840), (520, 418348), (536, 405860), (560, 388466), (670, 324688), (728, 298820), (871, 249760), (892, 243880), (910, 239056), (938, 231920), (1040, 209174), (1072, 202930), (1115, 195104), (1120, 194233), (1340, 162344), (1456, 149410), (1561, 139360), (1742, 124880), (1784, 121940), (1820, 119528), (1876, 115960), (2080, 104587), (2144, 101465), (2230, 97552), (2345, 92768), (2680, 81172), (2899, 75040), (2912, 74705), (3122, 69680), (3484, 62440), (3568, 60970), (3640, 59764), (3752, 57980), (4355, 49952), (4460, 48776), (4690, 46384), (5360, 40586), (5798, 37520), (6097, 35680), (6244, 34840), (6968, 31220), (7136, 30485), (7280, 29882), (7504, 28990), (7805, 27872), (8710, 24976), (8920, 24388), (9380, 23192), (10720, 20293), (11596, 18760), (12194, 17840), (12488, 17420), (13936, 15610), (14495, 15008), (14560, 14941)]