138841808

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{39989}}^1$

素因数の和:40035

約数の個数: 40

約数和(自身を含む): 317360640

約数和(自身を除く): 178518832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 39989, 79978, 159956, 279923, 319912, 559846, 639824, 1119692, 1239659, 2239384, 2479318, 4478768, 4958636, 8677613, 9917272, 17355226, 19834544, 34710452, 69420904, 138841808]

約数ペア:

[(1, 138841808), (2, 69420904), (4, 34710452), (7, 19834544), (8, 17355226), (14, 9917272), (16, 8677613), (28, 4958636), (31, 4478768), (56, 2479318), (62, 2239384), (112, 1239659), (124, 1119692), (217, 639824), (248, 559846), (434, 319912), (496, 279923), (868, 159956), (1736, 79978), (3472, 39989)]