31496775

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 59103360

約数和(自身を除く): 27606585

約数列:

[1, 3, 5, 15, 19, 23, 25, 31, 57, 69, 75, 93, 95, 115, 155, 285, 345, 437, 465, 475, 575, 589, 713, 775, 961, 1311, 1425, 1725, 1767, 2139, 2185, 2325, 2883, 2945, 3565, 4805, 6555, 8835, 10695, 10925, 13547, 14415, 14725, 17825, 18259, 22103, 24025, 32775, 40641, 44175, 53475, 54777, 66309, 67735, 72075, 91295, 110515, 203205, 273885, 331545, 338675, 419957, 456475, 552575, 1016025, 1259871, 1369425, 1657725, 2099785, 6299355, 10498925, 31496775]

約数ペア:

[(1, 31496775), (3, 10498925), (5, 6299355), (15, 2099785), (19, 1657725), (23, 1369425), (25, 1259871), (31, 1016025), (57, 552575), (69, 456475), (75, 419957), (93, 338675), (95, 331545), (115, 273885), (155, 203205), (285, 110515), (345, 91295), (437, 72075), (465, 67735), (475, 66309), (575, 54777), (589, 53475), (713, 44175), (775, 40641), (961, 32775), (1311, 24025), (1425, 22103), (1725, 18259), (1767, 17825), (2139, 14725), (2185, 14415), (2325, 13547), (2883, 10925), (2945, 10695), (3565, 8835), (4805, 6555)]