28379650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43661}}^1$

素因数の和:43686

約数の個数: 24

約数和(自身を含む): 56847924

約数和(自身を除く): 28468274

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 43661, 87322, 218305, 436610, 567593, 1091525, 1135186, 2183050, 2837965, 5675930, 14189825, 28379650]

約数ペア:

[(1, 28379650), (2, 14189825), (5, 5675930), (10, 2837965), (13, 2183050), (25, 1135186), (26, 1091525), (50, 567593), (65, 436610), (130, 218305), (325, 87322), (650, 43661)]