28857125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{677}}^1$

素因数の和:734

約数の個数: 32

約数和(自身を含む): 40614912

約数和(自身を除く): 11757787

約数列:

[1, 5, 11, 25, 31, 55, 125, 155, 275, 341, 677, 775, 1375, 1705, 3385, 3875, 7447, 8525, 16925, 20987, 37235, 42625, 84625, 104935, 186175, 230857, 524675, 930875, 1154285, 2623375, 5771425, 28857125]

約数ペア:

[(1, 28857125), (5, 5771425), (11, 2623375), (25, 1154285), (31, 930875), (55, 524675), (125, 230857), (155, 186175), (275, 104935), (341, 84625), (677, 42625), (775, 37235), (1375, 20987), (1705, 16925), (3385, 8525), (3875, 7447)]