138218512

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{200899}}^1$

素因数の和:200950

約数の個数: 20

約数和(自身を含む): 274027600

約数和(自身を除く): 135809088

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 200899, 401798, 803596, 1607192, 3214384, 8638657, 17277314, 34554628, 69109256, 138218512]

約数ペア:

[(1, 138218512), (2, 69109256), (4, 34554628), (8, 17277314), (16, 8638657), (43, 3214384), (86, 1607192), (172, 803596), (344, 401798), (688, 200899)]