28216263760

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1948637}}^1$

素因数の和:1948831

約数の個数: 40

約数和(自身を含む): 65965293576

約数和(自身を除く): 37749029816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 7240, 14480, 1948637, 3897274, 7794548, 9743185, 15589096, 19486370, 31178192, 38972740, 77945480, 155890960, 352703297, 705406594, 1410813188, 1763516485, 2821626376, 3527032970, 5643252752, 7054065940, 14108131880, 28216263760]

約数ペア:

[(1, 28216263760), (2, 14108131880), (4, 7054065940), (5, 5643252752), (8, 3527032970), (10, 2821626376), (16, 1763516485), (20, 1410813188), (40, 705406594), (80, 352703297), (181, 155890960), (362, 77945480), (724, 38972740), (905, 31178192), (1448, 19486370), (1810, 15589096), (2896, 9743185), (3620, 7794548), (7240, 3897274), (14480, 1948637)]