21710160

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:87

約数の個数: 240

約数和(自身を含む): 82286400

約数和(自身を除く): 60576240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 23, 24, 27, 30, 36, 38, 40, 45, 46, 48, 54, 57, 60, 69, 72, 76, 80, 90, 92, 95, 108, 114, 115, 120, 135, 138, 144, 152, 171, 180, 184, 190, 207, 216, 228, 230, 240, 270, 276, 285, 304, 342, 345, 360, 368, 380, 414, 432, 437, 456, 460, 513, 529, 540, 552, 570, 621, 684, 690, 720, 760, 828, 855, 874, 912, 920, 1026, 1035, 1058, 1080, 1104, 1140, 1242, 1311, 1368, 1380, 1520, 1587, 1656, 1710, 1748, 1840, 2052, 2070, 2116, 2160, 2185, 2280, 2484, 2565, 2622, 2645, 2736, 2760, 3105, 3174, 3312, 3420, 3496, 3933, 4104, 4140, 4232, 4370, 4560, 4761, 4968, 5130, 5244, 5290, 5520, 6210, 6348, 6555, 6840, 6992, 7866, 7935, 8208, 8280, 8464, 8740, 9522, 9936, 10051, 10260, 10488, 10580, 11799, 12420, 12696, 13110, 13680, 14283, 15732, 15870, 16560, 17480, 19044, 19665, 20102, 20520, 20976, 21160, 23598, 23805, 24840, 25392, 26220, 28566, 30153, 31464, 31740, 34960, 38088, 39330, 40204, 41040, 42320, 47196, 47610, 49680, 50255, 52440, 57132, 58995, 60306, 62928, 63480, 71415, 76176, 78660, 80408, 90459, 94392, 95220, 100510, 104880, 114264, 117990, 120612, 126960, 142830, 150765, 157320, 160816, 180918, 188784, 190440, 201020, 228528, 235980, 241224, 271377, 285660, 301530, 314640, 361836, 380880, 402040, 452295, 471960, 482448, 542754, 571320, 603060, 723672, 804080, 904590, 943920, 1085508, 1142640, 1206120, 1356885, 1447344, 1809180, 2171016, 2412240, 2713770, 3618360, 4342032, 5427540, 7236720, 10855080, 21710160]

約数ペア:

[(1, 21710160), (2, 10855080), (3, 7236720), (4, 5427540), (5, 4342032), (6, 3618360), (8, 2713770), (9, 2412240), (10, 2171016), (12, 1809180), (15, 1447344), (16, 1356885), (18, 1206120), (19, 1142640), (20, 1085508), (23, 943920), (24, 904590), (27, 804080), (30, 723672), (36, 603060), (38, 571320), (40, 542754), (45, 482448), (46, 471960), (48, 452295), (54, 402040), (57, 380880), (60, 361836), (69, 314640), (72, 301530), (76, 285660), (80, 271377), (90, 241224), (92, 235980), (95, 228528), (108, 201020), (114, 190440), (115, 188784), (120, 180918), (135, 160816), (138, 157320), (144, 150765), (152, 142830), (171, 126960), (180, 120612), (184, 117990), (190, 114264), (207, 104880), (216, 100510), (228, 95220), (230, 94392), (240, 90459), (270, 80408), (276, 78660), (285, 76176), (304, 71415), (342, 63480), (345, 62928), (360, 60306), (368, 58995), (380, 57132), (414, 52440), (432, 50255), (437, 49680), (456, 47610), (460, 47196), (513, 42320), (529, 41040), (540, 40204), (552, 39330), (570, 38088), (621, 34960), (684, 31740), (690, 31464), (720, 30153), (760, 28566), (828, 26220), (855, 25392), (874, 24840), (912, 23805), (920, 23598), (1026, 21160), (1035, 20976), (1058, 20520), (1080, 20102), (1104, 19665), (1140, 19044), (1242, 17480), (1311, 16560), (1368, 15870), (1380, 15732), (1520, 14283), (1587, 13680), (1656, 13110), (1710, 12696), (1748, 12420), (1840, 11799), (2052, 10580), (2070, 10488), (2116, 10260), (2160, 10051), (2185, 9936), (2280, 9522), (2484, 8740), (2565, 8464), (2622, 8280), (2645, 8208), (2736, 7935), (2760, 7866), (3105, 6992), (3174, 6840), (3312, 6555), (3420, 6348), (3496, 6210), (3933, 5520), (4104, 5290), (4140, 5244), (4232, 5130), (4370, 4968), (4560, 4761)]