400675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:99

約数の個数: 24

約数和(自身を含む): 571392

約数和(自身を除く): 170717

約数列:

[1, 5, 11, 25, 31, 47, 55, 155, 235, 275, 341, 517, 775, 1175, 1457, 1705, 2585, 7285, 8525, 12925, 16027, 36425, 80135, 400675]

約数ペア:

[(1, 400675), (5, 80135), (11, 36425), (25, 16027), (31, 12925), (47, 8525), (55, 7285), (155, 2585), (235, 1705), (275, 1457), (341, 1175), (517, 775)]