216519760

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:452

約数の個数: 80

約数和(自身を含む): 514824192

約数和(自身を除く): 298304432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 127, 202, 211, 254, 404, 422, 505, 508, 635, 808, 844, 1010, 1016, 1055, 1270, 1616, 1688, 2020, 2032, 2110, 2540, 3376, 4040, 4220, 5080, 8080, 8440, 10160, 12827, 16880, 21311, 25654, 26797, 42622, 51308, 53594, 64135, 85244, 102616, 106555, 107188, 128270, 133985, 170488, 205232, 213110, 214376, 256540, 267970, 340976, 426220, 428752, 513080, 535940, 852440, 1026160, 1071880, 1704880, 2143760, 2706497, 5412994, 10825988, 13532485, 21651976, 27064970, 43303952, 54129940, 108259880, 216519760]

約数ペア:

[(1, 216519760), (2, 108259880), (4, 54129940), (5, 43303952), (8, 27064970), (10, 21651976), (16, 13532485), (20, 10825988), (40, 5412994), (80, 2706497), (101, 2143760), (127, 1704880), (202, 1071880), (211, 1026160), (254, 852440), (404, 535940), (422, 513080), (505, 428752), (508, 426220), (635, 340976), (808, 267970), (844, 256540), (1010, 214376), (1016, 213110), (1055, 205232), (1270, 170488), (1616, 133985), (1688, 128270), (2020, 107188), (2032, 106555), (2110, 102616), (2540, 85244), (3376, 64135), (4040, 53594), (4220, 51308), (5080, 42622), (8080, 26797), (8440, 25654), (10160, 21311), (12827, 16880)]