266778875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 391817088

約数和(自身を除く): 125038213

約数列:

[1, 5, 11, 17, 25, 55, 85, 101, 113, 125, 187, 275, 425, 505, 565, 935, 1111, 1243, 1375, 1717, 1921, 2125, 2525, 2825, 4675, 5555, 6215, 8585, 9605, 11413, 12625, 14125, 18887, 21131, 23375, 27775, 31075, 42925, 48025, 57065, 94435, 105655, 125543, 138875, 155375, 194021, 214625, 240125, 285325, 472175, 528275, 627715, 970105, 1426625, 2134231, 2360875, 2641375, 3138575, 4850525, 10671155, 15692875, 24252625, 53355775, 266778875]

約数ペア:

[(1, 266778875), (5, 53355775), (11, 24252625), (17, 15692875), (25, 10671155), (55, 4850525), (85, 3138575), (101, 2641375), (113, 2360875), (125, 2134231), (187, 1426625), (275, 970105), (425, 627715), (505, 528275), (565, 472175), (935, 285325), (1111, 240125), (1243, 214625), (1375, 194021), (1717, 155375), (1921, 138875), (2125, 125543), (2525, 105655), (2825, 94435), (4675, 57065), (5555, 48025), (6215, 42925), (8585, 31075), (9605, 27775), (11413, 23375), (12625, 21131), (14125, 18887)]