19274920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 128

約数和(自身を含む): 53706240

約数和(自身を除く): 34431320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 41, 46, 56, 70, 73, 82, 92, 115, 140, 146, 161, 164, 184, 205, 230, 280, 287, 292, 322, 328, 365, 410, 460, 511, 574, 584, 644, 730, 805, 820, 920, 943, 1022, 1148, 1288, 1435, 1460, 1610, 1640, 1679, 1886, 2044, 2296, 2555, 2870, 2920, 2993, 3220, 3358, 3772, 4088, 4715, 5110, 5740, 5986, 6440, 6601, 6716, 7544, 8395, 9430, 10220, 11480, 11753, 11972, 13202, 13432, 14965, 16790, 18860, 20440, 20951, 23506, 23944, 26404, 29930, 33005, 33580, 37720, 41902, 47012, 52808, 58765, 59860, 66010, 67160, 68839, 83804, 94024, 104755, 117530, 119720, 132020, 137678, 167608, 209510, 235060, 264040, 275356, 344195, 419020, 470120, 481873, 550712, 688390, 838040, 963746, 1376780, 1927492, 2409365, 2753560, 3854984, 4818730, 9637460, 19274920]

約数ペア:

[(1, 19274920), (2, 9637460), (4, 4818730), (5, 3854984), (7, 2753560), (8, 2409365), (10, 1927492), (14, 1376780), (20, 963746), (23, 838040), (28, 688390), (35, 550712), (40, 481873), (41, 470120), (46, 419020), (56, 344195), (70, 275356), (73, 264040), (82, 235060), (92, 209510), (115, 167608), (140, 137678), (146, 132020), (161, 119720), (164, 117530), (184, 104755), (205, 94024), (230, 83804), (280, 68839), (287, 67160), (292, 66010), (322, 59860), (328, 58765), (365, 52808), (410, 47012), (460, 41902), (511, 37720), (574, 33580), (584, 33005), (644, 29930), (730, 26404), (805, 23944), (820, 23506), (920, 20951), (943, 20440), (1022, 18860), (1148, 16790), (1288, 14965), (1435, 13432), (1460, 13202), (1610, 11972), (1640, 11753), (1679, 11480), (1886, 10220), (2044, 9430), (2296, 8395), (2555, 7544), (2870, 6716), (2920, 6601), (2993, 6440), (3220, 5986), (3358, 5740), (3772, 5110), (4088, 4715)]