19975408

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:182

約数の個数: 80

約数和(自身を含む): 44568576

約数和(自身を除く): 24593168

約数列:

[1, 2, 4, 8, 16, 17, 23, 31, 34, 46, 62, 68, 92, 103, 124, 136, 184, 206, 248, 272, 368, 391, 412, 496, 527, 713, 782, 824, 1054, 1426, 1564, 1648, 1751, 2108, 2369, 2852, 3128, 3193, 3502, 4216, 4738, 5704, 6256, 6386, 7004, 8432, 9476, 11408, 12121, 12772, 14008, 18952, 24242, 25544, 28016, 37904, 40273, 48484, 51088, 54281, 73439, 80546, 96968, 108562, 146878, 161092, 193936, 217124, 293756, 322184, 434248, 587512, 644368, 868496, 1175024, 1248463, 2496926, 4993852, 9987704, 19975408]

約数ペア:

[(1, 19975408), (2, 9987704), (4, 4993852), (8, 2496926), (16, 1248463), (17, 1175024), (23, 868496), (31, 644368), (34, 587512), (46, 434248), (62, 322184), (68, 293756), (92, 217124), (103, 193936), (124, 161092), (136, 146878), (184, 108562), (206, 96968), (248, 80546), (272, 73439), (368, 54281), (391, 51088), (412, 48484), (496, 40273), (527, 37904), (713, 28016), (782, 25544), (824, 24242), (1054, 18952), (1426, 14008), (1564, 12772), (1648, 12121), (1751, 11408), (2108, 9476), (2369, 8432), (2852, 7004), (3128, 6386), (3193, 6256), (3502, 5704), (4216, 4738)]