20199442878

素因数分解:

$2^1\times 3^4\times {\mathrm{257}}^1\times {\mathrm{485167}}^1$

素因数の和:485438

約数の個数: 40

約数和(自身を含む): 45437923872

約数和(自身を除く): 25238480994

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 257, 514, 771, 1542, 2313, 4626, 6939, 13878, 20817, 41634, 485167, 970334, 1455501, 2911002, 4366503, 8733006, 13099509, 26199018, 39298527, 78597054, 124687919, 249375838, 374063757, 748127514, 1122191271, 2244382542, 3366573813, 6733147626, 10099721439, 20199442878]

約数ペア:

[(1, 20199442878), (2, 10099721439), (3, 6733147626), (6, 3366573813), (9, 2244382542), (18, 1122191271), (27, 748127514), (54, 374063757), (81, 249375838), (162, 124687919), (257, 78597054), (514, 39298527), (771, 26199018), (1542, 13099509), (2313, 8733006), (4626, 4366503), (6939, 2911002), (13878, 1455501), (20817, 970334), (41634, 485167)]