261905280

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1499}}^1$

素因数の和:1541

約数の個数: 256

約数和(自身を含む): 1028160000

約数和(自身を除く): 766254720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 52, 56, 60, 64, 65, 70, 78, 80, 84, 91, 96, 104, 105, 112, 120, 128, 130, 140, 156, 160, 168, 182, 192, 195, 208, 210, 224, 240, 260, 273, 280, 312, 320, 336, 364, 384, 390, 416, 420, 448, 455, 480, 520, 546, 560, 624, 640, 672, 728, 780, 832, 840, 896, 910, 960, 1040, 1092, 1120, 1248, 1344, 1365, 1456, 1499, 1560, 1664, 1680, 1820, 1920, 2080, 2184, 2240, 2496, 2688, 2730, 2912, 2998, 3120, 3360, 3640, 4160, 4368, 4480, 4497, 4992, 5460, 5824, 5996, 6240, 6720, 7280, 7495, 8320, 8736, 8994, 10493, 10920, 11648, 11992, 12480, 13440, 14560, 14990, 17472, 17988, 19487, 20986, 21840, 22485, 23984, 24960, 29120, 29980, 31479, 34944, 35976, 38974, 41972, 43680, 44970, 47968, 52465, 58240, 58461, 59960, 62958, 71952, 77948, 83944, 87360, 89940, 95936, 97435, 104930, 116922, 119920, 125916, 136409, 143904, 155896, 157395, 167888, 174720, 179880, 191872, 194870, 209860, 233844, 239840, 251832, 272818, 287808, 292305, 311792, 314790, 335776, 359760, 389740, 409227, 419720, 467688, 479680, 503664, 545636, 575616, 584610, 623584, 629580, 671552, 682045, 719520, 779480, 818454, 839440, 935376, 959360, 1007328, 1091272, 1169220, 1247168, 1259160, 1343104, 1364090, 1439040, 1558960, 1636908, 1678880, 1870752, 2014656, 2046135, 2182544, 2338440, 2494336, 2518320, 2728180, 2878080, 3117920, 3273816, 3357760, 3741504, 4029312, 4092270, 4365088, 4676880, 5036640, 5456360, 6235840, 6547632, 6715520, 7483008, 8184540, 8730176, 9353760, 10073280, 10912720, 12471680, 13095264, 16369080, 17460352, 18707520, 20146560, 21825440, 26190528, 32738160, 37415040, 43650880, 52381056, 65476320, 87301760, 130952640, 261905280]

約数ペア:

[(1, 261905280), (2, 130952640), (3, 87301760), (4, 65476320), (5, 52381056), (6, 43650880), (7, 37415040), (8, 32738160), (10, 26190528), (12, 21825440), (13, 20146560), (14, 18707520), (15, 17460352), (16, 16369080), (20, 13095264), (21, 12471680), (24, 10912720), (26, 10073280), (28, 9353760), (30, 8730176), (32, 8184540), (35, 7483008), (39, 6715520), (40, 6547632), (42, 6235840), (48, 5456360), (52, 5036640), (56, 4676880), (60, 4365088), (64, 4092270), (65, 4029312), (70, 3741504), (78, 3357760), (80, 3273816), (84, 3117920), (91, 2878080), (96, 2728180), (104, 2518320), (105, 2494336), (112, 2338440), (120, 2182544), (128, 2046135), (130, 2014656), (140, 1870752), (156, 1678880), (160, 1636908), (168, 1558960), (182, 1439040), (192, 1364090), (195, 1343104), (208, 1259160), (210, 1247168), (224, 1169220), (240, 1091272), (260, 1007328), (273, 959360), (280, 935376), (312, 839440), (320, 818454), (336, 779480), (364, 719520), (384, 682045), (390, 671552), (416, 629580), (420, 623584), (448, 584610), (455, 575616), (480, 545636), (520, 503664), (546, 479680), (560, 467688), (624, 419720), (640, 409227), (672, 389740), (728, 359760), (780, 335776), (832, 314790), (840, 311792), (896, 292305), (910, 287808), (960, 272818), (1040, 251832), (1092, 239840), (1120, 233844), (1248, 209860), (1344, 194870), (1365, 191872), (1456, 179880), (1499, 174720), (1560, 167888), (1664, 157395), (1680, 155896), (1820, 143904), (1920, 136409), (2080, 125916), (2184, 119920), (2240, 116922), (2496, 104930), (2688, 97435), (2730, 95936), (2912, 89940), (2998, 87360), (3120, 83944), (3360, 77948), (3640, 71952), (4160, 62958), (4368, 59960), (4480, 58461), (4497, 58240), (4992, 52465), (5460, 47968), (5824, 44970), (5996, 43680), (6240, 41972), (6720, 38974), (7280, 35976), (7495, 34944), (8320, 31479), (8736, 29980), (8994, 29120), (10493, 24960), (10920, 23984), (11648, 22485), (11992, 21840), (12480, 20986), (13440, 19487), (14560, 17988), (14990, 17472)]