256206240

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{373}}^1$

素因数の和:453

約数の個数: 240

約数和(自身を含む): 923724648

約数和(自身を除く): 667518408

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 53, 54, 60, 72, 80, 81, 90, 96, 106, 108, 120, 135, 144, 159, 160, 162, 180, 212, 216, 240, 265, 270, 288, 318, 324, 360, 373, 405, 424, 432, 477, 480, 530, 540, 636, 648, 720, 746, 795, 810, 848, 864, 954, 1060, 1080, 1119, 1272, 1296, 1431, 1440, 1492, 1590, 1620, 1696, 1865, 1908, 2120, 2160, 2238, 2385, 2544, 2592, 2862, 2984, 3180, 3240, 3357, 3730, 3816, 4240, 4293, 4320, 4476, 4770, 5088, 5595, 5724, 5968, 6360, 6480, 6714, 7155, 7460, 7632, 8480, 8586, 8952, 9540, 10071, 11190, 11448, 11936, 12720, 12960, 13428, 14310, 14920, 15264, 16785, 17172, 17904, 19080, 19769, 20142, 21465, 22380, 22896, 25440, 26856, 28620, 29840, 30213, 33570, 34344, 35808, 38160, 39538, 40284, 42930, 44760, 45792, 50355, 53712, 57240, 59307, 59680, 60426, 67140, 68688, 76320, 79076, 80568, 85860, 89520, 98845, 100710, 107424, 114480, 118614, 120852, 134280, 137376, 151065, 158152, 161136, 171720, 177921, 179040, 197690, 201420, 228960, 237228, 241704, 268560, 296535, 302130, 316304, 322272, 343440, 355842, 395380, 402840, 474456, 483408, 533763, 537120, 593070, 604260, 632608, 686880, 711684, 790760, 805680, 889605, 948912, 966816, 1067526, 1186140, 1208520, 1423368, 1581520, 1601289, 1611360, 1779210, 1897824, 2135052, 2372280, 2417040, 2668815, 2846736, 3163040, 3202578, 3558420, 4270104, 4744560, 4834080, 5337630, 5693472, 6405156, 7116840, 8006445, 8540208, 9489120, 10675260, 12810312, 14233680, 16012890, 17080416, 21350520, 25620624, 28467360, 32025780, 42701040, 51241248, 64051560, 85402080, 128103120, 256206240]

約数ペア:

[(1, 256206240), (2, 128103120), (3, 85402080), (4, 64051560), (5, 51241248), (6, 42701040), (8, 32025780), (9, 28467360), (10, 25620624), (12, 21350520), (15, 17080416), (16, 16012890), (18, 14233680), (20, 12810312), (24, 10675260), (27, 9489120), (30, 8540208), (32, 8006445), (36, 7116840), (40, 6405156), (45, 5693472), (48, 5337630), (53, 4834080), (54, 4744560), (60, 4270104), (72, 3558420), (80, 3202578), (81, 3163040), (90, 2846736), (96, 2668815), (106, 2417040), (108, 2372280), (120, 2135052), (135, 1897824), (144, 1779210), (159, 1611360), (160, 1601289), (162, 1581520), (180, 1423368), (212, 1208520), (216, 1186140), (240, 1067526), (265, 966816), (270, 948912), (288, 889605), (318, 805680), (324, 790760), (360, 711684), (373, 686880), (405, 632608), (424, 604260), (432, 593070), (477, 537120), (480, 533763), (530, 483408), (540, 474456), (636, 402840), (648, 395380), (720, 355842), (746, 343440), (795, 322272), (810, 316304), (848, 302130), (864, 296535), (954, 268560), (1060, 241704), (1080, 237228), (1119, 228960), (1272, 201420), (1296, 197690), (1431, 179040), (1440, 177921), (1492, 171720), (1590, 161136), (1620, 158152), (1696, 151065), (1865, 137376), (1908, 134280), (2120, 120852), (2160, 118614), (2238, 114480), (2385, 107424), (2544, 100710), (2592, 98845), (2862, 89520), (2984, 85860), (3180, 80568), (3240, 79076), (3357, 76320), (3730, 68688), (3816, 67140), (4240, 60426), (4293, 59680), (4320, 59307), (4476, 57240), (4770, 53712), (5088, 50355), (5595, 45792), (5724, 44760), (5968, 42930), (6360, 40284), (6480, 39538), (6714, 38160), (7155, 35808), (7460, 34344), (7632, 33570), (8480, 30213), (8586, 29840), (8952, 28620), (9540, 26856), (10071, 25440), (11190, 22896), (11448, 22380), (11936, 21465), (12720, 20142), (12960, 19769), (13428, 19080), (14310, 17904), (14920, 17172), (15264, 16785)]