31788380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{122263}}^1$

素因数の和:122285

約数の個数: 24

約数和(自身を含む): 71891232

約数和(自身を除く): 40102852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 122263, 244526, 489052, 611315, 1222630, 1589419, 2445260, 3178838, 6357676, 7947095, 15894190, 31788380]

約数ペア:

[(1, 31788380), (2, 15894190), (4, 7947095), (5, 6357676), (10, 3178838), (13, 2445260), (20, 1589419), (26, 1222630), (52, 611315), (65, 489052), (130, 244526), (260, 122263)]