8419820

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^2\times {\mathrm{79}}^1$

素因数の和:234

約数の個数: 36

約数和(自身を含む): 18154080

約数和(自身を除く): 9734260

約数列:

[1, 2, 4, 5, 10, 20, 73, 79, 146, 158, 292, 316, 365, 395, 730, 790, 1460, 1580, 5329, 5767, 10658, 11534, 21316, 23068, 26645, 28835, 53290, 57670, 106580, 115340, 420991, 841982, 1683964, 2104955, 4209910, 8419820]

約数ペア:

[(1, 8419820), (2, 4209910), (4, 2104955), (5, 1683964), (10, 841982), (20, 420991), (73, 115340), (79, 106580), (146, 57670), (158, 53290), (292, 28835), (316, 26645), (365, 23068), (395, 21316), (730, 11534), (790, 10658), (1460, 5767), (1580, 5329)]