20121479964

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{443}}^1\times {\mathrm{30773}}^1$

素因数の和:31267

約数の個数: 72

約数和(自身を含む): 52222493232

約数和(自身を除く): 32101013268

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 369, 443, 492, 738, 886, 1329, 1476, 1772, 2658, 3987, 5316, 7974, 15948, 18163, 30773, 36326, 54489, 61546, 72652, 92319, 108978, 123092, 163467, 184638, 217956, 276957, 326934, 369276, 553914, 653868, 1107828, 1261693, 2523386, 3785079, 5046772, 7570158, 11355237, 13632439, 15140316, 22710474, 27264878, 40897317, 45420948, 54529756, 81794634, 122691951, 163589268, 245383902, 490767804, 558929999, 1117859998, 1676789997, 2235719996, 3353579994, 5030369991, 6707159988, 10060739982, 20121479964]

約数ペア:

[(1, 20121479964), (2, 10060739982), (3, 6707159988), (4, 5030369991), (6, 3353579994), (9, 2235719996), (12, 1676789997), (18, 1117859998), (36, 558929999), (41, 490767804), (82, 245383902), (123, 163589268), (164, 122691951), (246, 81794634), (369, 54529756), (443, 45420948), (492, 40897317), (738, 27264878), (886, 22710474), (1329, 15140316), (1476, 13632439), (1772, 11355237), (2658, 7570158), (3987, 5046772), (5316, 3785079), (7974, 2523386), (15948, 1261693), (18163, 1107828), (30773, 653868), (36326, 553914), (54489, 369276), (61546, 326934), (72652, 276957), (92319, 217956), (108978, 184638), (123092, 163467)]