20512459810

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{307}}^1\times {\mathrm{1019}}^1$

素因数の和:1495

約数の個数: 64

約数和(自身を含む): 38000793600

約数和(自身を除く): 17488333790

約数列:

[1, 2, 5, 10, 79, 83, 158, 166, 307, 395, 415, 614, 790, 830, 1019, 1535, 2038, 3070, 5095, 6557, 10190, 13114, 24253, 25481, 32785, 48506, 50962, 65570, 80501, 84577, 121265, 127405, 161002, 169154, 242530, 254810, 312833, 402505, 422885, 625666, 805010, 845770, 1564165, 2012999, 3128330, 4025998, 6681583, 10064995, 13363166, 20129990, 24713807, 25965139, 33407915, 49427614, 51930278, 66815830, 123569035, 129825695, 247138070, 259651390, 2051245981, 4102491962, 10256229905, 20512459810]

約数ペア:

[(1, 20512459810), (2, 10256229905), (5, 4102491962), (10, 2051245981), (79, 259651390), (83, 247138070), (158, 129825695), (166, 123569035), (307, 66815830), (395, 51930278), (415, 49427614), (614, 33407915), (790, 25965139), (830, 24713807), (1019, 20129990), (1535, 13363166), (2038, 10064995), (3070, 6681583), (5095, 4025998), (6557, 3128330), (10190, 2012999), (13114, 1564165), (24253, 845770), (25481, 805010), (32785, 625666), (48506, 422885), (50962, 402505), (65570, 312833), (80501, 254810), (84577, 242530), (121265, 169154), (127405, 161002)]