20747029280

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1826323}}^1$

素因数の和:1826409

約数の個数: 48

約数和(自身を含む): 49705233984

約数和(自身を除く): 28958204704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11360, 1826323, 3652646, 7305292, 9131615, 14610584, 18263230, 29221168, 36526460, 58442336, 73052920, 129668933, 146105840, 259337866, 292211680, 518675732, 648344665, 1037351464, 1296689330, 2074702928, 2593378660, 4149405856, 5186757320, 10373514640, 20747029280]

約数ペア:

[(1, 20747029280), (2, 10373514640), (4, 5186757320), (5, 4149405856), (8, 2593378660), (10, 2074702928), (16, 1296689330), (20, 1037351464), (32, 648344665), (40, 518675732), (71, 292211680), (80, 259337866), (142, 146105840), (160, 129668933), (284, 73052920), (355, 58442336), (568, 36526460), (710, 29221168), (1136, 18263230), (1420, 14610584), (2272, 9131615), (2840, 7305292), (5680, 3652646), (11360, 1826323)]