20173939820

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{547}}^1\times {\mathrm{25261}}^1$

素因数の和:25890

約数の個数: 48

約数和(自身を含む): 43025834208

約数和(自身を除く): 22851894388

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 547, 730, 1094, 1460, 2188, 2735, 5470, 10940, 25261, 39931, 50522, 79862, 101044, 126305, 159724, 199655, 252610, 399310, 505220, 798620, 1844053, 3688106, 7376212, 9220265, 13817767, 18440530, 27635534, 36881060, 55271068, 69088835, 138177670, 276355340, 1008696991, 2017393982, 4034787964, 5043484955, 10086969910, 20173939820]

約数ペア:

[(1, 20173939820), (2, 10086969910), (4, 5043484955), (5, 4034787964), (10, 2017393982), (20, 1008696991), (73, 276355340), (146, 138177670), (292, 69088835), (365, 55271068), (547, 36881060), (730, 27635534), (1094, 18440530), (1460, 13817767), (2188, 9220265), (2735, 7376212), (5470, 3688106), (10940, 1844053), (25261, 798620), (39931, 505220), (50522, 399310), (79862, 252610), (101044, 199655), (126305, 159724)]