20263400

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1427}}^1$

素因数の和:1514

約数の個数: 48

約数和(自身を含む): 47809440

約数和(自身を除く): 27546040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 1420, 1427, 1775, 2840, 2854, 3550, 5708, 7100, 7135, 11416, 14200, 14270, 28540, 35675, 57080, 71350, 101317, 142700, 202634, 285400, 405268, 506585, 810536, 1013170, 2026340, 2532925, 4052680, 5065850, 10131700, 20263400]

約数ペア:

[(1, 20263400), (2, 10131700), (4, 5065850), (5, 4052680), (8, 2532925), (10, 2026340), (20, 1013170), (25, 810536), (40, 506585), (50, 405268), (71, 285400), (100, 202634), (142, 142700), (200, 101317), (284, 71350), (355, 57080), (568, 35675), (710, 28540), (1420, 14270), (1427, 14200), (1775, 11416), (2840, 7135), (2854, 7100), (3550, 5708)]