81826940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{314719}}^1$

素因数の和:314741

約数の個数: 24

約数和(自身を含む): 185055360

約数和(自身を除く): 103228420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 314719, 629438, 1258876, 1573595, 3147190, 4091347, 6294380, 8182694, 16365388, 20456735, 40913470, 81826940]

約数ペア:

[(1, 81826940), (2, 40913470), (4, 20456735), (5, 16365388), (10, 8182694), (13, 6294380), (20, 4091347), (26, 3147190), (52, 1573595), (65, 1258876), (130, 629438), (260, 314719)]