20030990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4271}}^1$

素因数の和:4352

約数の個数: 32

約数和(自身を含む): 41831424

約数和(自身を除く): 21800434

約数列:

[1, 2, 5, 7, 10, 14, 35, 67, 70, 134, 335, 469, 670, 938, 2345, 4271, 4690, 8542, 21355, 29897, 42710, 59794, 149485, 286157, 298970, 572314, 1430785, 2003099, 2861570, 4006198, 10015495, 20030990]

約数ペア:

[(1, 20030990), (2, 10015495), (5, 4006198), (7, 2861570), (10, 2003099), (14, 1430785), (35, 572314), (67, 298970), (70, 286157), (134, 149485), (335, 59794), (469, 42710), (670, 29897), (938, 21355), (2345, 8542), (4271, 4690)]