12968800

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:105

約数の個数: 144

約数和(自身を含む): 36091440

約数和(自身を除く): 23122640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 29, 32, 40, 43, 50, 52, 58, 65, 80, 86, 100, 104, 116, 130, 145, 160, 172, 200, 208, 215, 232, 260, 290, 325, 344, 377, 400, 416, 430, 464, 520, 559, 580, 650, 688, 725, 754, 800, 860, 928, 1040, 1075, 1118, 1160, 1247, 1300, 1376, 1450, 1508, 1720, 1885, 2080, 2150, 2236, 2320, 2494, 2600, 2795, 2900, 3016, 3440, 3770, 4300, 4472, 4640, 4988, 5200, 5590, 5800, 6032, 6235, 6880, 7540, 8600, 8944, 9425, 9976, 10400, 11180, 11600, 12064, 12470, 13975, 15080, 16211, 17200, 17888, 18850, 19952, 22360, 23200, 24940, 27950, 30160, 31175, 32422, 34400, 37700, 39904, 44720, 49880, 55900, 60320, 62350, 64844, 75400, 81055, 89440, 99760, 111800, 124700, 129688, 150800, 162110, 199520, 223600, 249400, 259376, 301600, 324220, 405275, 447200, 498800, 518752, 648440, 810550, 997600, 1296880, 1621100, 2593760, 3242200, 6484400, 12968800]

約数ペア:

[(1, 12968800), (2, 6484400), (4, 3242200), (5, 2593760), (8, 1621100), (10, 1296880), (13, 997600), (16, 810550), (20, 648440), (25, 518752), (26, 498800), (29, 447200), (32, 405275), (40, 324220), (43, 301600), (50, 259376), (52, 249400), (58, 223600), (65, 199520), (80, 162110), (86, 150800), (100, 129688), (104, 124700), (116, 111800), (130, 99760), (145, 89440), (160, 81055), (172, 75400), (200, 64844), (208, 62350), (215, 60320), (232, 55900), (260, 49880), (290, 44720), (325, 39904), (344, 37700), (377, 34400), (400, 32422), (416, 31175), (430, 30160), (464, 27950), (520, 24940), (559, 23200), (580, 22360), (650, 19952), (688, 18850), (725, 17888), (754, 17200), (800, 16211), (860, 15080), (928, 13975), (1040, 12470), (1075, 12064), (1118, 11600), (1160, 11180), (1247, 10400), (1300, 9976), (1376, 9425), (1450, 8944), (1508, 8600), (1720, 7540), (1885, 6880), (2080, 6235), (2150, 6032), (2236, 5800), (2320, 5590), (2494, 5200), (2600, 4988), (2795, 4640), (2900, 4472), (3016, 4300), (3440, 3770)]