20828804560

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{133999}}^1$

素因数の和:134108

約数の個数: 80

約数和(自身を含む): 50844960000

約数和(自身を除く): 30016155440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 67, 80, 116, 134, 145, 232, 268, 290, 335, 464, 536, 580, 670, 1072, 1160, 1340, 1943, 2320, 2680, 3886, 5360, 7772, 9715, 15544, 19430, 31088, 38860, 77720, 133999, 155440, 267998, 535996, 669995, 1071992, 1339990, 2143984, 2679980, 3885971, 5359960, 7771942, 8977933, 10719920, 15543884, 17955866, 19429855, 31087768, 35911732, 38859710, 44889665, 62175536, 71823464, 77719420, 89779330, 143646928, 155438840, 179558660, 260360057, 310877680, 359117320, 520720114, 718234640, 1041440228, 1301800285, 2082880456, 2603600570, 4165760912, 5207201140, 10414402280, 20828804560]

約数ペア:

[(1, 20828804560), (2, 10414402280), (4, 5207201140), (5, 4165760912), (8, 2603600570), (10, 2082880456), (16, 1301800285), (20, 1041440228), (29, 718234640), (40, 520720114), (58, 359117320), (67, 310877680), (80, 260360057), (116, 179558660), (134, 155438840), (145, 143646928), (232, 89779330), (268, 77719420), (290, 71823464), (335, 62175536), (464, 44889665), (536, 38859710), (580, 35911732), (670, 31087768), (1072, 19429855), (1160, 17955866), (1340, 15543884), (1943, 10719920), (2320, 8977933), (2680, 7771942), (3886, 5359960), (5360, 3885971), (7772, 2679980), (9715, 2143984), (15544, 1339990), (19430, 1071992), (31088, 669995), (38860, 535996), (77720, 267998), (133999, 155440)]