81137470

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1\times {\mathrm{257}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 148347936

約数和(自身を除く): 67210466

約数列:

[1, 2, 5, 10, 131, 241, 257, 262, 482, 514, 655, 1205, 1285, 1310, 2410, 2570, 31571, 33667, 61937, 63142, 67334, 123874, 157855, 168335, 309685, 315710, 336670, 619370, 8113747, 16227494, 40568735, 81137470]

約数ペア:

[(1, 81137470), (2, 40568735), (5, 16227494), (10, 8113747), (131, 619370), (241, 336670), (257, 315710), (262, 309685), (482, 168335), (514, 157855), (655, 123874), (1205, 67334), (1285, 63142), (1310, 61937), (2410, 33667), (2570, 31571)]