28587790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:433

約数の個数: 64

約数和(自身を含む): 64862208

約数和(自身を除く): 36274418

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 137, 154, 271, 274, 385, 542, 685, 770, 959, 1355, 1370, 1507, 1897, 1918, 2710, 2981, 3014, 3794, 4795, 5962, 7535, 9485, 9590, 10549, 14905, 15070, 18970, 20867, 21098, 29810, 37127, 41734, 52745, 74254, 104335, 105490, 185635, 208670, 259889, 371270, 408397, 519778, 816794, 1299445, 2041985, 2598890, 2858779, 4083970, 5717558, 14293895, 28587790]

約数ペア:

[(1, 28587790), (2, 14293895), (5, 5717558), (7, 4083970), (10, 2858779), (11, 2598890), (14, 2041985), (22, 1299445), (35, 816794), (55, 519778), (70, 408397), (77, 371270), (110, 259889), (137, 208670), (154, 185635), (271, 105490), (274, 104335), (385, 74254), (542, 52745), (685, 41734), (770, 37127), (959, 29810), (1355, 21098), (1370, 20867), (1507, 18970), (1897, 15070), (1918, 14905), (2710, 10549), (2981, 9590), (3014, 9485), (3794, 7535), (4795, 5962)]