1320240040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{64591}}^1$

素因数の和:64682

約数の個数: 64

約数和(自身を含む): 3441461760

約数和(自身を除く): 2121221720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 4088, 5110, 10220, 20440, 64591, 129182, 258364, 322955, 452137, 516728, 645910, 904274, 1291820, 1808548, 2260685, 2583640, 3617096, 4521370, 4715143, 9042740, 9430286, 18085480, 18860572, 23575715, 33006001, 37721144, 47151430, 66012002, 94302860, 132024004, 165030005, 188605720, 264048008, 330060010, 660120020, 1320240040]

約数ペア:

[(1, 1320240040), (2, 660120020), (4, 330060010), (5, 264048008), (7, 188605720), (8, 165030005), (10, 132024004), (14, 94302860), (20, 66012002), (28, 47151430), (35, 37721144), (40, 33006001), (56, 23575715), (70, 18860572), (73, 18085480), (140, 9430286), (146, 9042740), (280, 4715143), (292, 4521370), (365, 3617096), (511, 2583640), (584, 2260685), (730, 1808548), (1022, 1291820), (1460, 904274), (2044, 645910), (2555, 516728), (2920, 452137), (4088, 322955), (5110, 258364), (10220, 129182), (20440, 64591)]