217461720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:242

約数の個数: 256

約数和(自身を含む): 787968000

約数和(自身を除く): 570506280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 29, 30, 35, 40, 42, 56, 58, 60, 70, 79, 84, 87, 105, 113, 116, 120, 140, 145, 158, 168, 174, 203, 210, 226, 232, 237, 280, 290, 316, 339, 348, 395, 406, 420, 435, 452, 474, 553, 565, 580, 609, 632, 678, 696, 790, 791, 812, 840, 870, 904, 948, 1015, 1106, 1130, 1160, 1185, 1218, 1356, 1580, 1582, 1624, 1659, 1695, 1740, 1896, 2030, 2212, 2260, 2291, 2370, 2373, 2436, 2712, 2765, 3045, 3160, 3164, 3277, 3318, 3390, 3480, 3955, 4060, 4424, 4520, 4582, 4740, 4746, 4872, 5530, 6090, 6328, 6554, 6636, 6780, 6873, 7910, 8120, 8295, 8927, 9164, 9480, 9492, 9831, 11060, 11455, 11865, 12180, 13108, 13272, 13560, 13746, 15820, 16037, 16385, 16590, 17854, 18328, 18984, 19662, 22120, 22910, 22939, 23730, 24360, 26216, 26781, 27492, 31640, 32074, 32770, 33180, 34365, 35708, 39324, 44635, 45820, 45878, 47460, 48111, 49155, 53562, 54984, 62489, 64148, 65540, 66360, 68730, 68817, 71416, 78648, 80185, 89270, 91640, 91756, 94920, 96222, 98310, 107124, 114695, 124978, 128296, 131080, 133905, 137460, 137634, 160370, 178540, 183512, 187467, 192444, 196620, 214248, 229390, 240555, 249956, 258883, 267810, 274920, 275268, 312445, 320740, 344085, 357080, 374934, 384888, 393240, 458780, 481110, 499912, 517766, 535620, 550536, 624890, 641480, 688170, 749868, 776649, 917560, 937335, 962220, 1035532, 1071240, 1249780, 1294415, 1376340, 1499736, 1553298, 1812181, 1874670, 1924440, 2071064, 2499560, 2588830, 2752680, 3106596, 3624362, 3749340, 3883245, 5177660, 5436543, 6213192, 7248724, 7498680, 7766490, 9060905, 10355320, 10873086, 14497448, 15532980, 18121810, 21746172, 27182715, 31065960, 36243620, 43492344, 54365430, 72487240, 108730860, 217461720]

約数ペア:

[(1, 217461720), (2, 108730860), (3, 72487240), (4, 54365430), (5, 43492344), (6, 36243620), (7, 31065960), (8, 27182715), (10, 21746172), (12, 18121810), (14, 15532980), (15, 14497448), (20, 10873086), (21, 10355320), (24, 9060905), (28, 7766490), (29, 7498680), (30, 7248724), (35, 6213192), (40, 5436543), (42, 5177660), (56, 3883245), (58, 3749340), (60, 3624362), (70, 3106596), (79, 2752680), (84, 2588830), (87, 2499560), (105, 2071064), (113, 1924440), (116, 1874670), (120, 1812181), (140, 1553298), (145, 1499736), (158, 1376340), (168, 1294415), (174, 1249780), (203, 1071240), (210, 1035532), (226, 962220), (232, 937335), (237, 917560), (280, 776649), (290, 749868), (316, 688170), (339, 641480), (348, 624890), (395, 550536), (406, 535620), (420, 517766), (435, 499912), (452, 481110), (474, 458780), (553, 393240), (565, 384888), (580, 374934), (609, 357080), (632, 344085), (678, 320740), (696, 312445), (790, 275268), (791, 274920), (812, 267810), (840, 258883), (870, 249956), (904, 240555), (948, 229390), (1015, 214248), (1106, 196620), (1130, 192444), (1160, 187467), (1185, 183512), (1218, 178540), (1356, 160370), (1580, 137634), (1582, 137460), (1624, 133905), (1659, 131080), (1695, 128296), (1740, 124978), (1896, 114695), (2030, 107124), (2212, 98310), (2260, 96222), (2291, 94920), (2370, 91756), (2373, 91640), (2436, 89270), (2712, 80185), (2765, 78648), (3045, 71416), (3160, 68817), (3164, 68730), (3277, 66360), (3318, 65540), (3390, 64148), (3480, 62489), (3955, 54984), (4060, 53562), (4424, 49155), (4520, 48111), (4582, 47460), (4740, 45878), (4746, 45820), (4872, 44635), (5530, 39324), (6090, 35708), (6328, 34365), (6554, 33180), (6636, 32770), (6780, 32074), (6873, 31640), (7910, 27492), (8120, 26781), (8295, 26216), (8927, 24360), (9164, 23730), (9480, 22939), (9492, 22910), (9831, 22120), (11060, 19662), (11455, 18984), (11865, 18328), (12180, 17854), (13108, 16590), (13272, 16385), (13560, 16037), (13746, 15820)]