255737240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{1619}}^1$

素因数の和:2000

約数の個数: 64

約数和(自身を含む): 629856000

約数和(自身を除く): 374118760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 359, 440, 718, 1436, 1619, 1795, 2872, 3238, 3590, 3949, 6476, 7180, 7898, 8095, 12952, 14360, 15796, 16190, 17809, 19745, 31592, 32380, 35618, 39490, 64760, 71236, 78980, 89045, 142472, 157960, 178090, 356180, 581221, 712360, 1162442, 2324884, 2906105, 4649768, 5812210, 6393431, 11624420, 12786862, 23248840, 25573724, 31967155, 51147448, 63934310, 127868620, 255737240]

約数ペア:

[(1, 255737240), (2, 127868620), (4, 63934310), (5, 51147448), (8, 31967155), (10, 25573724), (11, 23248840), (20, 12786862), (22, 11624420), (40, 6393431), (44, 5812210), (55, 4649768), (88, 2906105), (110, 2324884), (220, 1162442), (359, 712360), (440, 581221), (718, 356180), (1436, 178090), (1619, 157960), (1795, 142472), (2872, 89045), (3238, 78980), (3590, 71236), (3949, 64760), (6476, 39490), (7180, 35618), (7898, 32380), (8095, 31592), (12952, 19745), (14360, 17809), (15796, 16190)]