28468920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1811}}^1$

素因数の和:1956

約数の個数: 64

約数和(自身を含む): 86106240

約数和(自身を除く): 57637320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1811, 1965, 2620, 3144, 3622, 3930, 5240, 5433, 7244, 7860, 9055, 10866, 14488, 15720, 18110, 21732, 27165, 36220, 43464, 54330, 72440, 108660, 217320, 237241, 474482, 711723, 948964, 1186205, 1423446, 1897928, 2372410, 2846892, 3558615, 4744820, 5693784, 7117230, 9489640, 14234460, 28468920]

約数ペア:

[(1, 28468920), (2, 14234460), (3, 9489640), (4, 7117230), (5, 5693784), (6, 4744820), (8, 3558615), (10, 2846892), (12, 2372410), (15, 1897928), (20, 1423446), (24, 1186205), (30, 948964), (40, 711723), (60, 474482), (120, 237241), (131, 217320), (262, 108660), (393, 72440), (524, 54330), (655, 43464), (786, 36220), (1048, 27165), (1310, 21732), (1572, 18110), (1811, 15720), (1965, 14488), (2620, 10866), (3144, 9055), (3622, 7860), (3930, 7244), (5240, 5433)]