133939640

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{25561}}^1$

素因数の和:25703

約数の個数: 32

約数和(自身を含む): 303676560

約数和(自身を除く): 169736920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 25561, 51122, 102244, 127805, 204488, 255610, 511220, 1022440, 3348491, 6696982, 13393964, 16742455, 26787928, 33484910, 66969820, 133939640]

約数ペア:

[(1, 133939640), (2, 66969820), (4, 33484910), (5, 26787928), (8, 16742455), (10, 13393964), (20, 6696982), (40, 3348491), (131, 1022440), (262, 511220), (524, 255610), (655, 204488), (1048, 127805), (1310, 102244), (2620, 51122), (5240, 25561)]