28856520

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1$

素因数の和:385

約数の個数: 256

約数和(自身を含む): 120268800

約数和(自身を除く): 91412280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 27, 28, 30, 33, 35, 36, 40, 42, 44, 45, 54, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 99, 105, 108, 110, 120, 126, 132, 135, 140, 154, 165, 168, 180, 189, 198, 210, 216, 220, 231, 252, 264, 270, 280, 297, 308, 315, 330, 347, 360, 378, 385, 396, 420, 440, 462, 495, 504, 540, 594, 616, 630, 660, 693, 694, 756, 770, 792, 840, 924, 945, 990, 1041, 1080, 1155, 1188, 1260, 1320, 1386, 1388, 1485, 1512, 1540, 1735, 1848, 1890, 1980, 2079, 2082, 2310, 2376, 2429, 2520, 2772, 2776, 2970, 3080, 3123, 3465, 3470, 3780, 3817, 3960, 4158, 4164, 4620, 4858, 5205, 5544, 5940, 6246, 6930, 6940, 7287, 7560, 7634, 8316, 8328, 9240, 9369, 9716, 10395, 10410, 11451, 11880, 12145, 12492, 13860, 13880, 14574, 15268, 15615, 16632, 18738, 19085, 19432, 20790, 20820, 21861, 22902, 24290, 24984, 26719, 27720, 29148, 30536, 31230, 34353, 36435, 37476, 38170, 41580, 41640, 43722, 45804, 46845, 48580, 53438, 57255, 58296, 62460, 65583, 68706, 72870, 74952, 76340, 80157, 83160, 87444, 91608, 93690, 97160, 103059, 106876, 109305, 114510, 124920, 131166, 133595, 137412, 145740, 152680, 160314, 171765, 174888, 187380, 206118, 213752, 218610, 229020, 240471, 262332, 267190, 274824, 291480, 320628, 327915, 343530, 374760, 400785, 412236, 437220, 458040, 480942, 515295, 524664, 534380, 641256, 655830, 687060, 721413, 801570, 824472, 874440, 961884, 1030590, 1068760, 1202355, 1311660, 1374120, 1442826, 1603140, 1923768, 2061180, 2404710, 2623320, 2885652, 3206280, 3607065, 4122360, 4809420, 5771304, 7214130, 9618840, 14428260, 28856520]

約数ペア:

[(1, 28856520), (2, 14428260), (3, 9618840), (4, 7214130), (5, 5771304), (6, 4809420), (7, 4122360), (8, 3607065), (9, 3206280), (10, 2885652), (11, 2623320), (12, 2404710), (14, 2061180), (15, 1923768), (18, 1603140), (20, 1442826), (21, 1374120), (22, 1311660), (24, 1202355), (27, 1068760), (28, 1030590), (30, 961884), (33, 874440), (35, 824472), (36, 801570), (40, 721413), (42, 687060), (44, 655830), (45, 641256), (54, 534380), (55, 524664), (56, 515295), (60, 480942), (63, 458040), (66, 437220), (70, 412236), (72, 400785), (77, 374760), (84, 343530), (88, 327915), (90, 320628), (99, 291480), (105, 274824), (108, 267190), (110, 262332), (120, 240471), (126, 229020), (132, 218610), (135, 213752), (140, 206118), (154, 187380), (165, 174888), (168, 171765), (180, 160314), (189, 152680), (198, 145740), (210, 137412), (216, 133595), (220, 131166), (231, 124920), (252, 114510), (264, 109305), (270, 106876), (280, 103059), (297, 97160), (308, 93690), (315, 91608), (330, 87444), (347, 83160), (360, 80157), (378, 76340), (385, 74952), (396, 72870), (420, 68706), (440, 65583), (462, 62460), (495, 58296), (504, 57255), (540, 53438), (594, 48580), (616, 46845), (630, 45804), (660, 43722), (693, 41640), (694, 41580), (756, 38170), (770, 37476), (792, 36435), (840, 34353), (924, 31230), (945, 30536), (990, 29148), (1041, 27720), (1080, 26719), (1155, 24984), (1188, 24290), (1260, 22902), (1320, 21861), (1386, 20820), (1388, 20790), (1485, 19432), (1512, 19085), (1540, 18738), (1735, 16632), (1848, 15615), (1890, 15268), (1980, 14574), (2079, 13880), (2082, 13860), (2310, 12492), (2376, 12145), (2429, 11880), (2520, 11451), (2772, 10410), (2776, 10395), (2970, 9716), (3080, 9369), (3123, 9240), (3465, 8328), (3470, 8316), (3780, 7634), (3817, 7560), (3960, 7287), (4158, 6940), (4164, 6930), (4620, 6246), (4858, 5940), (5205, 5544)]