1456780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{431}}^1$

素因数の和:466

約数の個数: 36

約数和(自身を含む): 3320352

約数和(自身を除く): 1863572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 431, 676, 845, 862, 1690, 1724, 2155, 3380, 4310, 5603, 8620, 11206, 22412, 28015, 56030, 72839, 112060, 145678, 291356, 364195, 728390, 1456780]

約数ペア:

[(1, 1456780), (2, 728390), (4, 364195), (5, 291356), (10, 145678), (13, 112060), (20, 72839), (26, 56030), (52, 28015), (65, 22412), (130, 11206), (169, 8620), (260, 5603), (338, 4310), (431, 3380), (676, 2155), (845, 1724), (862, 1690)]