2021837680

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{414311}}^1$

素因数の和:414385

約数の個数: 40

約数和(自身を含む): 4777845984

約数和(自身を除く): 2756008304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 414311, 828622, 1657244, 2071555, 3314488, 4143110, 6628976, 8286220, 16572440, 25272971, 33144880, 50545942, 101091884, 126364855, 202183768, 252729710, 404367536, 505459420, 1010918840, 2021837680]

約数ペア:

[(1, 2021837680), (2, 1010918840), (4, 505459420), (5, 404367536), (8, 252729710), (10, 202183768), (16, 126364855), (20, 101091884), (40, 50545942), (61, 33144880), (80, 25272971), (122, 16572440), (244, 8286220), (305, 6628976), (488, 4143110), (610, 3314488), (976, 2071555), (1220, 1657244), (2440, 828622), (4880, 414311)]