5120680

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{409}}^1$

素因数の和:733

約数の個数: 32

約数和(自身を含む): 11586600

約数和(自身を除く): 6465920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 409, 626, 818, 1252, 1565, 1636, 2045, 2504, 3130, 3272, 4090, 6260, 8180, 12520, 16360, 128017, 256034, 512068, 640085, 1024136, 1280170, 2560340, 5120680]

約数ペア:

[(1, 5120680), (2, 2560340), (4, 1280170), (5, 1024136), (8, 640085), (10, 512068), (20, 256034), (40, 128017), (313, 16360), (409, 12520), (626, 8180), (818, 6260), (1252, 4090), (1565, 3272), (1636, 3130), (2045, 2504)]