21520320

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{773}}^1$

素因数の和:822

約数の個数: 112

約数和(自身を含む): 70774560

約数和(自身を除く): 49254240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 64, 80, 87, 96, 116, 120, 145, 160, 174, 192, 232, 240, 290, 320, 348, 435, 464, 480, 580, 696, 773, 870, 928, 960, 1160, 1392, 1546, 1740, 1856, 2319, 2320, 2784, 3092, 3480, 3865, 4638, 4640, 5568, 6184, 6960, 7730, 9276, 9280, 11595, 12368, 13920, 15460, 18552, 22417, 23190, 24736, 27840, 30920, 37104, 44834, 46380, 49472, 61840, 67251, 74208, 89668, 92760, 112085, 123680, 134502, 148416, 179336, 185520, 224170, 247360, 269004, 336255, 358672, 371040, 448340, 538008, 672510, 717344, 742080, 896680, 1076016, 1345020, 1434688, 1793360, 2152032, 2690040, 3586720, 4304064, 5380080, 7173440, 10760160, 21520320]

約数ペア:

[(1, 21520320), (2, 10760160), (3, 7173440), (4, 5380080), (5, 4304064), (6, 3586720), (8, 2690040), (10, 2152032), (12, 1793360), (15, 1434688), (16, 1345020), (20, 1076016), (24, 896680), (29, 742080), (30, 717344), (32, 672510), (40, 538008), (48, 448340), (58, 371040), (60, 358672), (64, 336255), (80, 269004), (87, 247360), (96, 224170), (116, 185520), (120, 179336), (145, 148416), (160, 134502), (174, 123680), (192, 112085), (232, 92760), (240, 89668), (290, 74208), (320, 67251), (348, 61840), (435, 49472), (464, 46380), (480, 44834), (580, 37104), (696, 30920), (773, 27840), (870, 24736), (928, 23190), (960, 22417), (1160, 18552), (1392, 15460), (1546, 13920), (1740, 12368), (1856, 11595), (2319, 9280), (2320, 9276), (2784, 7730), (3092, 6960), (3480, 6184), (3865, 5568), (4638, 4640)]