20194674745

素因数分解:

$5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1\times {\mathrm{15541}}^1$

素因数の和:15961

約数の個数: 32

約数和(自身を含む): 28002456576

約数和(自身を除く): 7807781831

約数列:

[1, 5, 7, 35, 137, 271, 685, 959, 1355, 1897, 4795, 9485, 15541, 37127, 77705, 108787, 185635, 259889, 543935, 1299445, 2129117, 4211611, 10645585, 14903819, 21058055, 29481277, 74519095, 147406385, 576990707, 2884953535, 4038934949, 20194674745]

約数ペア:

[(1, 20194674745), (5, 4038934949), (7, 2884953535), (35, 576990707), (137, 147406385), (271, 74519095), (685, 29481277), (959, 21058055), (1355, 14903819), (1897, 10645585), (4795, 4211611), (9485, 2129117), (15541, 1299445), (37127, 543935), (77705, 259889), (108787, 185635)]