18974456735

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{719}}^1\times {\mathrm{10973}}^1$

素因数の和:11747

約数の個数: 32

約数和(自身を含む): 25220885760

約数和(自身を除く): 6246429025

約数列:

[1, 5, 13, 37, 65, 185, 481, 719, 2405, 3595, 9347, 10973, 26603, 46735, 54865, 133015, 142649, 345839, 406001, 713245, 1729195, 2030005, 5278013, 7889587, 26390065, 39447935, 102564631, 291914719, 512823155, 1459573595, 3794891347, 18974456735]

約数ペア:

[(1, 18974456735), (5, 3794891347), (13, 1459573595), (37, 512823155), (65, 291914719), (185, 102564631), (481, 39447935), (719, 26390065), (2405, 7889587), (3595, 5278013), (9347, 2030005), (10973, 1729195), (26603, 713245), (46735, 406001), (54865, 345839), (133015, 142649)]