20359625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1$

素因数の和:123

約数の個数: 64

約数和(自身を含む): 32078592

約数和(自身を除く): 11718967

約数列:

[1, 5, 11, 13, 17, 25, 55, 65, 67, 85, 125, 143, 187, 221, 275, 325, 335, 425, 715, 737, 871, 935, 1105, 1139, 1375, 1625, 1675, 2125, 2431, 3575, 3685, 4355, 4675, 5525, 5695, 8375, 9581, 12155, 12529, 14807, 17875, 18425, 21775, 23375, 27625, 28475, 47905, 60775, 62645, 74035, 92125, 108875, 142375, 162877, 239525, 303875, 313225, 370175, 814385, 1197625, 1566125, 1850875, 4071925, 20359625]

約数ペア:

[(1, 20359625), (5, 4071925), (11, 1850875), (13, 1566125), (17, 1197625), (25, 814385), (55, 370175), (65, 313225), (67, 303875), (85, 239525), (125, 162877), (143, 142375), (187, 108875), (221, 92125), (275, 74035), (325, 62645), (335, 60775), (425, 47905), (715, 28475), (737, 27625), (871, 23375), (935, 21775), (1105, 18425), (1139, 17875), (1375, 14807), (1625, 12529), (1675, 12155), (2125, 9581), (2431, 8375), (3575, 5695), (3685, 5525), (4355, 4675)]