255987240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{677}}^1$

素因数の和:851

約数の個数: 128

約数和(自身を含む): 808392960

約数和(自身を除く): 552405720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 137, 138, 184, 230, 274, 276, 345, 411, 460, 548, 552, 677, 685, 690, 822, 920, 1096, 1354, 1370, 1380, 1644, 2031, 2055, 2708, 2740, 2760, 3151, 3288, 3385, 4062, 4110, 5416, 5480, 6302, 6770, 8124, 8220, 9453, 10155, 12604, 13540, 15571, 15755, 16248, 16440, 18906, 20310, 25208, 27080, 31142, 31510, 37812, 40620, 46713, 47265, 62284, 63020, 75624, 77855, 81240, 92749, 93426, 94530, 124568, 126040, 155710, 185498, 186852, 189060, 233565, 278247, 311420, 370996, 373704, 378120, 463745, 467130, 556494, 622840, 741992, 927490, 934260, 1112988, 1391235, 1854980, 1868520, 2133227, 2225976, 2782470, 3709960, 4266454, 5564940, 6399681, 8532908, 10666135, 11129880, 12799362, 17065816, 21332270, 25598724, 31998405, 42664540, 51197448, 63996810, 85329080, 127993620, 255987240]

約数ペア:

[(1, 255987240), (2, 127993620), (3, 85329080), (4, 63996810), (5, 51197448), (6, 42664540), (8, 31998405), (10, 25598724), (12, 21332270), (15, 17065816), (20, 12799362), (23, 11129880), (24, 10666135), (30, 8532908), (40, 6399681), (46, 5564940), (60, 4266454), (69, 3709960), (92, 2782470), (115, 2225976), (120, 2133227), (137, 1868520), (138, 1854980), (184, 1391235), (230, 1112988), (274, 934260), (276, 927490), (345, 741992), (411, 622840), (460, 556494), (548, 467130), (552, 463745), (677, 378120), (685, 373704), (690, 370996), (822, 311420), (920, 278247), (1096, 233565), (1354, 189060), (1370, 186852), (1380, 185498), (1644, 155710), (2031, 126040), (2055, 124568), (2708, 94530), (2740, 93426), (2760, 92749), (3151, 81240), (3288, 77855), (3385, 75624), (4062, 63020), (4110, 62284), (5416, 47265), (5480, 46713), (6302, 40620), (6770, 37812), (8124, 31510), (8220, 31142), (9453, 27080), (10155, 25208), (12604, 20310), (13540, 18906), (15571, 16440), (15755, 16248)]