257788790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{26881}}^1$

素因数の和:27032

約数の個数: 32

約数和(自身を含む): 534199104

約数和(自身を除く): 276410314

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 137, 274, 685, 959, 1370, 1918, 4795, 9590, 26881, 53762, 134405, 188167, 268810, 376334, 940835, 1881670, 3682697, 7365394, 18413485, 25778879, 36826970, 51557758, 128894395, 257788790]

約数ペア:

[(1, 257788790), (2, 128894395), (5, 51557758), (7, 36826970), (10, 25778879), (14, 18413485), (35, 7365394), (70, 3682697), (137, 1881670), (274, 940835), (685, 376334), (959, 268810), (1370, 188167), (1918, 134405), (4795, 53762), (9590, 26881)]