20859984

素因数分解:

$2^4\times 3^3\times {\mathrm{109}}^1\times {\mathrm{443}}^1$

素因数の和:569

約数の個数: 80

約数和(自身を含む): 60561600

約数和(自身を除く): 39701616

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 109, 144, 216, 218, 327, 432, 436, 443, 654, 872, 886, 981, 1308, 1329, 1744, 1772, 1962, 2616, 2658, 2943, 3544, 3924, 3987, 5232, 5316, 5886, 7088, 7848, 7974, 10632, 11772, 11961, 15696, 15948, 21264, 23544, 23922, 31896, 47088, 47844, 48287, 63792, 95688, 96574, 144861, 191376, 193148, 289722, 386296, 434583, 579444, 772592, 869166, 1158888, 1303749, 1738332, 2317776, 2607498, 3476664, 5214996, 6953328, 10429992, 20859984]

約数ペア:

[(1, 20859984), (2, 10429992), (3, 6953328), (4, 5214996), (6, 3476664), (8, 2607498), (9, 2317776), (12, 1738332), (16, 1303749), (18, 1158888), (24, 869166), (27, 772592), (36, 579444), (48, 434583), (54, 386296), (72, 289722), (108, 193148), (109, 191376), (144, 144861), (216, 96574), (218, 95688), (327, 63792), (432, 48287), (436, 47844), (443, 47088), (654, 31896), (872, 23922), (886, 23544), (981, 21264), (1308, 15948), (1329, 15696), (1744, 11961), (1772, 11772), (1962, 10632), (2616, 7974), (2658, 7848), (2943, 7088), (3544, 5886), (3924, 5316), (3987, 5232)]