20718574080

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{17183}}^1$

素因数の和:17366

約数の個数: 160

約数和(自身を含む): 66660447744

約数和(自身を除く): 45941873664

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 157, 160, 192, 240, 256, 314, 320, 384, 471, 480, 512, 628, 640, 768, 785, 942, 960, 1256, 1280, 1536, 1570, 1884, 1920, 2355, 2512, 2560, 3140, 3768, 3840, 4710, 5024, 6280, 7536, 7680, 9420, 10048, 12560, 15072, 17183, 18840, 20096, 25120, 30144, 34366, 37680, 40192, 50240, 51549, 60288, 68732, 75360, 80384, 85915, 100480, 103098, 120576, 137464, 150720, 171830, 200960, 206196, 241152, 257745, 274928, 301440, 343660, 401920, 412392, 515490, 549856, 602880, 687320, 824784, 1030980, 1099712, 1205760, 1374640, 1649568, 2061960, 2199424, 2697731, 2749280, 3299136, 4123920, 4398848, 5395462, 5498560, 6598272, 8093193, 8247840, 8797696, 10790924, 10997120, 13196544, 13488655, 16186386, 16495680, 21581848, 21994240, 26393088, 26977310, 32372772, 32991360, 40465965, 43163696, 43988480, 53954620, 64745544, 65982720, 80931930, 86327392, 107909240, 129491088, 131965440, 161863860, 172654784, 215818480, 258982176, 323727720, 345309568, 431636960, 517964352, 647455440, 690619136, 863273920, 1035928704, 1294910880, 1381238272, 1726547840, 2071857408, 2589821760, 3453095680, 4143714816, 5179643520, 6906191360, 10359287040, 20718574080]

約数ペア:

[(1, 20718574080), (2, 10359287040), (3, 6906191360), (4, 5179643520), (5, 4143714816), (6, 3453095680), (8, 2589821760), (10, 2071857408), (12, 1726547840), (15, 1381238272), (16, 1294910880), (20, 1035928704), (24, 863273920), (30, 690619136), (32, 647455440), (40, 517964352), (48, 431636960), (60, 345309568), (64, 323727720), (80, 258982176), (96, 215818480), (120, 172654784), (128, 161863860), (157, 131965440), (160, 129491088), (192, 107909240), (240, 86327392), (256, 80931930), (314, 65982720), (320, 64745544), (384, 53954620), (471, 43988480), (480, 43163696), (512, 40465965), (628, 32991360), (640, 32372772), (768, 26977310), (785, 26393088), (942, 21994240), (960, 21581848), (1256, 16495680), (1280, 16186386), (1536, 13488655), (1570, 13196544), (1884, 10997120), (1920, 10790924), (2355, 8797696), (2512, 8247840), (2560, 8093193), (3140, 6598272), (3768, 5498560), (3840, 5395462), (4710, 4398848), (5024, 4123920), (6280, 3299136), (7536, 2749280), (7680, 2697731), (9420, 2199424), (10048, 2061960), (12560, 1649568), (15072, 1374640), (17183, 1205760), (18840, 1099712), (20096, 1030980), (25120, 824784), (30144, 687320), (34366, 602880), (37680, 549856), (40192, 515490), (50240, 412392), (51549, 401920), (60288, 343660), (68732, 301440), (75360, 274928), (80384, 257745), (85915, 241152), (100480, 206196), (103098, 200960), (120576, 171830), (137464, 150720)]