1399951820

素因数分解:

$2^2\times 5^1\times {\mathrm{1361}}^1\times {\mathrm{51431}}^1$

素因数の和:52801

約数の個数: 24

約数和(自身を含む): 2942116128

約数和(自身を除く): 1542164308

約数列:

[1, 2, 4, 5, 10, 20, 1361, 2722, 5444, 6805, 13610, 27220, 51431, 102862, 205724, 257155, 514310, 1028620, 69997591, 139995182, 279990364, 349987955, 699975910, 1399951820]

約数ペア:

[(1, 1399951820), (2, 699975910), (4, 349987955), (5, 279990364), (10, 139995182), (20, 69997591), (1361, 1028620), (2722, 514310), (5444, 257155), (6805, 205724), (13610, 102862), (27220, 51431)]