19810702916

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{587}}^1\times {\mathrm{2819}}^1$

素因数の和:3524

約数の個数: 48

約数和(自身を含む): 36074928960

約数和(自身を除く): 16264226044

約数列:

[1, 2, 4, 41, 73, 82, 146, 164, 292, 587, 1174, 2348, 2819, 2993, 5638, 5986, 11276, 11972, 24067, 42851, 48134, 85702, 96268, 115579, 171404, 205787, 231158, 411574, 462316, 823148, 1654753, 1756891, 3309506, 3513782, 6619012, 7027564, 8437267, 16874534, 33749068, 67844873, 120796969, 135689746, 241593938, 271379492, 483187876, 4952675729, 9905351458, 19810702916]

約数ペア:

[(1, 19810702916), (2, 9905351458), (4, 4952675729), (41, 483187876), (73, 271379492), (82, 241593938), (146, 135689746), (164, 120796969), (292, 67844873), (587, 33749068), (1174, 16874534), (2348, 8437267), (2819, 7027564), (2993, 6619012), (5638, 3513782), (5986, 3309506), (11276, 1756891), (11972, 1654753), (24067, 823148), (42851, 462316), (48134, 411574), (85702, 231158), (96268, 205787), (115579, 171404)]