51087800

素因数分解:

$2^3\times 5^2\times {\mathrm{157}}^1\times {\mathrm{1627}}^1$

素因数の和:1800

約数の個数: 48

約数和(自身を含む): 119609160

約数和(自身を除く): 68521360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 157, 200, 314, 628, 785, 1256, 1570, 1627, 3140, 3254, 3925, 6280, 6508, 7850, 8135, 13016, 15700, 16270, 31400, 32540, 40675, 65080, 81350, 162700, 255439, 325400, 510878, 1021756, 1277195, 2043512, 2554390, 5108780, 6385975, 10217560, 12771950, 25543900, 51087800]

約数ペア:

[(1, 51087800), (2, 25543900), (4, 12771950), (5, 10217560), (8, 6385975), (10, 5108780), (20, 2554390), (25, 2043512), (40, 1277195), (50, 1021756), (100, 510878), (157, 325400), (200, 255439), (314, 162700), (628, 81350), (785, 65080), (1256, 40675), (1570, 32540), (1627, 31400), (3140, 16270), (3254, 15700), (3925, 13016), (6280, 8135), (6508, 7850)]