138420208

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{279073}}^1$

素因数の和:279112

約数の個数: 20

約数和(自身を含む): 276841408

約数和(自身を除く): 138421200

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 279073, 558146, 1116292, 2232584, 4465168, 8651263, 17302526, 34605052, 69210104, 138420208]

約数ペア:

[(1, 138420208), (2, 69210104), (4, 34605052), (8, 17302526), (16, 8651263), (31, 4465168), (62, 2232584), (124, 1116292), (248, 558146), (496, 279073)]