20131168760

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8250479}}^1$

素因数の和:8250551

約数の個数: 32

約数和(自身を含む): 46037678400

約数和(自身を除く): 25906509640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 8250479, 16500958, 33001916, 41252395, 66003832, 82504790, 165009580, 330019160, 503279219, 1006558438, 2013116876, 2516396095, 4026233752, 5032792190, 10065584380, 20131168760]

約数ペア:

[(1, 20131168760), (2, 10065584380), (4, 5032792190), (5, 4026233752), (8, 2516396095), (10, 2013116876), (20, 1006558438), (40, 503279219), (61, 330019160), (122, 165009580), (244, 82504790), (305, 66003832), (488, 41252395), (610, 33001916), (1220, 16500958), (2440, 8250479)]