31371860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{120661}}^1$

素因数の和:120683

約数の個数: 24

約数和(自身を含む): 70949256

約数和(自身を除く): 39577396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 120661, 241322, 482644, 603305, 1206610, 1568593, 2413220, 3137186, 6274372, 7842965, 15685930, 31371860]

約数ペア:

[(1, 31371860), (2, 15685930), (4, 7842965), (5, 6274372), (10, 3137186), (13, 2413220), (20, 1568593), (26, 1206610), (52, 603305), (65, 482644), (130, 241322), (260, 120661)]