68878125

素因数分解:

$3^2\times 5^5\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 129991680

約数和(自身を除く): 61113555

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 79, 93, 125, 155, 225, 237, 279, 375, 395, 465, 625, 711, 775, 1125, 1185, 1395, 1875, 1975, 2325, 2449, 3125, 3555, 3875, 5625, 5925, 6975, 7347, 9375, 9875, 11625, 12245, 17775, 19375, 22041, 28125, 29625, 34875, 36735, 49375, 58125, 61225, 88875, 96875, 110205, 148125, 174375, 183675, 246875, 290625, 306125, 444375, 551025, 740625, 871875, 918375, 1530625, 2221875, 2755125, 4591875, 7653125, 13775625, 22959375, 68878125]

約数ペア:

[(1, 68878125), (3, 22959375), (5, 13775625), (9, 7653125), (15, 4591875), (25, 2755125), (31, 2221875), (45, 1530625), (75, 918375), (79, 871875), (93, 740625), (125, 551025), (155, 444375), (225, 306125), (237, 290625), (279, 246875), (375, 183675), (395, 174375), (465, 148125), (625, 110205), (711, 96875), (775, 88875), (1125, 61225), (1185, 58125), (1395, 49375), (1875, 36735), (1975, 34875), (2325, 29625), (2449, 28125), (3125, 22041), (3555, 19375), (3875, 17775), (5625, 12245), (5925, 11625), (6975, 9875), (7347, 9375)]