17922380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{409}}^1$

素因数の和:738

約数の個数: 48

約数和(自身を含む): 43256640

約数和(自身を除く): 25334260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 313, 409, 626, 818, 1252, 1565, 1636, 2045, 2191, 2863, 3130, 4090, 4382, 5726, 6260, 8180, 8764, 10955, 11452, 14315, 21910, 28630, 43820, 57260, 128017, 256034, 512068, 640085, 896119, 1280170, 1792238, 2560340, 3584476, 4480595, 8961190, 17922380]

約数ペア:

[(1, 17922380), (2, 8961190), (4, 4480595), (5, 3584476), (7, 2560340), (10, 1792238), (14, 1280170), (20, 896119), (28, 640085), (35, 512068), (70, 256034), (140, 128017), (313, 57260), (409, 43820), (626, 28630), (818, 21910), (1252, 14315), (1565, 11452), (1636, 10955), (2045, 8764), (2191, 8180), (2863, 6260), (3130, 5726), (4090, 4382)]