78859820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{303307}}^1$

素因数の和:303329

約数の個数: 24

約数和(自身を含む): 178345104

約数和(自身を除く): 99485284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 303307, 606614, 1213228, 1516535, 3033070, 3942991, 6066140, 7885982, 15771964, 19714955, 39429910, 78859820]

約数ペア:

[(1, 78859820), (2, 39429910), (4, 19714955), (5, 15771964), (10, 7885982), (13, 6066140), (20, 3942991), (26, 3033070), (52, 1516535), (65, 1213228), (130, 606614), (260, 303307)]