20370875

素因数分解:

$5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{751}}^1$

素因数の和:804

約数の個数: 32

約数和(自身を含む): 30031872

約数和(自身を除く): 9660997

約数列:

[1, 5, 7, 25, 31, 35, 125, 155, 175, 217, 751, 775, 875, 1085, 3755, 3875, 5257, 5425, 18775, 23281, 26285, 27125, 93875, 116405, 131425, 162967, 582025, 657125, 814835, 2910125, 4074175, 20370875]

約数ペア:

[(1, 20370875), (5, 4074175), (7, 2910125), (25, 814835), (31, 657125), (35, 582025), (125, 162967), (155, 131425), (175, 116405), (217, 93875), (751, 27125), (775, 26285), (875, 23281), (1085, 18775), (3755, 5425), (3875, 5257)]