20405979234

素因数分解:

$2^1\times 3^2\times {\mathrm{139}}^1\times {\mathrm{1481}}^1\times {\mathrm{5507}}^1$

素因数の和:7135

約数の個数: 48

約数和(自身を含む): 44569193760

約数和(自身を除く): 24163214526

約数列:

[1, 2, 3, 6, 9, 18, 139, 278, 417, 834, 1251, 1481, 2502, 2962, 4443, 5507, 8886, 11014, 13329, 16521, 26658, 33042, 49563, 99126, 205859, 411718, 617577, 765473, 1235154, 1530946, 1852731, 2296419, 3705462, 4592838, 6889257, 8155867, 13778514, 16311734, 24467601, 48935202, 73402803, 146805606, 1133665513, 2267331026, 3400996539, 6801993078, 10202989617, 20405979234]

約数ペア:

[(1, 20405979234), (2, 10202989617), (3, 6801993078), (6, 3400996539), (9, 2267331026), (18, 1133665513), (139, 146805606), (278, 73402803), (417, 48935202), (834, 24467601), (1251, 16311734), (1481, 13778514), (2502, 8155867), (2962, 6889257), (4443, 4592838), (5507, 3705462), (8886, 2296419), (11014, 1852731), (13329, 1530946), (16521, 1235154), (26658, 765473), (33042, 617577), (49563, 411718), (99126, 205859)]