19285400

素因数分解:

$2^3\times 5^2\times {\mathrm{211}}^1\times {\mathrm{457}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 45149640

約数和(自身を除く): 25864240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 211, 422, 457, 844, 914, 1055, 1688, 1828, 2110, 2285, 3656, 4220, 4570, 5275, 8440, 9140, 10550, 11425, 18280, 21100, 22850, 42200, 45700, 91400, 96427, 192854, 385708, 482135, 771416, 964270, 1928540, 2410675, 3857080, 4821350, 9642700, 19285400]

約数ペア:

[(1, 19285400), (2, 9642700), (4, 4821350), (5, 3857080), (8, 2410675), (10, 1928540), (20, 964270), (25, 771416), (40, 482135), (50, 385708), (100, 192854), (200, 96427), (211, 91400), (422, 45700), (457, 42200), (844, 22850), (914, 21100), (1055, 18280), (1688, 11425), (1828, 10550), (2110, 9140), (2285, 8440), (3656, 5275), (4220, 4570)]