221661580

素因数分解:

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

素因数の和:176

約数の個数: 144

約数和(自身を含む): 577491264

約数和(自身を除く): 355829684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 41, 46, 70, 73, 82, 92, 115, 140, 146, 161, 164, 205, 230, 287, 292, 322, 365, 410, 460, 511, 529, 574, 644, 730, 805, 820, 943, 1022, 1058, 1148, 1435, 1460, 1610, 1679, 1886, 2044, 2116, 2555, 2645, 2870, 2993, 3220, 3358, 3703, 3772, 4715, 5110, 5290, 5740, 5986, 6601, 6716, 7406, 8395, 9430, 10220, 10580, 11753, 11972, 13202, 14812, 14965, 16790, 18515, 18860, 20951, 21689, 23506, 26404, 29930, 33005, 33580, 37030, 38617, 41902, 43378, 47012, 58765, 59860, 66010, 68839, 74060, 77234, 83804, 86756, 104755, 108445, 117530, 132020, 137678, 151823, 154468, 193085, 209510, 216890, 235060, 270319, 275356, 303646, 344195, 386170, 419020, 433780, 481873, 540638, 607292, 688390, 759115, 772340, 963746, 1081276, 1351595, 1376780, 1518230, 1583297, 1927492, 2409365, 2703190, 3036460, 3166594, 4818730, 5406380, 6333188, 7916485, 9637460, 11083079, 15832970, 22166158, 31665940, 44332316, 55415395, 110830790, 221661580]

約数ペア:

[(1, 221661580), (2, 110830790), (4, 55415395), (5, 44332316), (7, 31665940), (10, 22166158), (14, 15832970), (20, 11083079), (23, 9637460), (28, 7916485), (35, 6333188), (41, 5406380), (46, 4818730), (70, 3166594), (73, 3036460), (82, 2703190), (92, 2409365), (115, 1927492), (140, 1583297), (146, 1518230), (161, 1376780), (164, 1351595), (205, 1081276), (230, 963746), (287, 772340), (292, 759115), (322, 688390), (365, 607292), (410, 540638), (460, 481873), (511, 433780), (529, 419020), (574, 386170), (644, 344195), (730, 303646), (805, 275356), (820, 270319), (943, 235060), (1022, 216890), (1058, 209510), (1148, 193085), (1435, 154468), (1460, 151823), (1610, 137678), (1679, 132020), (1886, 117530), (2044, 108445), (2116, 104755), (2555, 86756), (2645, 83804), (2870, 77234), (2993, 74060), (3220, 68839), (3358, 66010), (3703, 59860), (3772, 58765), (4715, 47012), (5110, 43378), (5290, 41902), (5740, 38617), (5986, 37030), (6601, 33580), (6716, 33005), (7406, 29930), (8395, 26404), (9430, 23506), (10220, 21689), (10580, 20951), (11753, 18860), (11972, 18515), (13202, 16790), (14812, 14965)]