509030920

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{19853}}^1$

素因数の和:20505

約数の個数: 32

約数和(自身を含む): 1147164120

約数和(自身を除く): 638133200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 5128, 6410, 12820, 19853, 25640, 39706, 79412, 99265, 158824, 198530, 397060, 794120, 12725773, 25451546, 50903092, 63628865, 101806184, 127257730, 254515460, 509030920]

約数ペア:

[(1, 509030920), (2, 254515460), (4, 127257730), (5, 101806184), (8, 63628865), (10, 50903092), (20, 25451546), (40, 12725773), (641, 794120), (1282, 397060), (2564, 198530), (3205, 158824), (5128, 99265), (6410, 79412), (12820, 39706), (19853, 25640)]