128260790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:413

約数の個数: 64

約数和(自身を含む): 270978048

約数和(自身を除く): 142717258

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 131, 142, 197, 262, 355, 394, 497, 655, 710, 917, 985, 994, 1310, 1379, 1834, 1970, 2485, 2758, 4585, 4970, 6895, 9170, 9301, 13790, 13987, 18602, 25807, 27974, 46505, 51614, 65107, 69935, 93010, 97909, 129035, 130214, 139870, 180649, 195818, 258070, 325535, 361298, 489545, 651070, 903245, 979090, 1806490, 1832297, 3664594, 9161485, 12826079, 18322970, 25652158, 64130395, 128260790]

約数ペア:

[(1, 128260790), (2, 64130395), (5, 25652158), (7, 18322970), (10, 12826079), (14, 9161485), (35, 3664594), (70, 1832297), (71, 1806490), (131, 979090), (142, 903245), (197, 651070), (262, 489545), (355, 361298), (394, 325535), (497, 258070), (655, 195818), (710, 180649), (917, 139870), (985, 130214), (994, 129035), (1310, 97909), (1379, 93010), (1834, 69935), (1970, 65107), (2485, 51614), (2758, 46505), (4585, 27974), (4970, 25807), (6895, 18602), (9170, 13987), (9301, 13790)]