81780136

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{173263}}^1$

素因数の和:173328

約数の個数: 16

約数和(自身を含む): 155937600

約数和(自身を除く): 74157464

約数列:

[1, 2, 4, 8, 59, 118, 236, 472, 173263, 346526, 693052, 1386104, 10222517, 20445034, 40890068, 81780136]

約数ペア:

[(1, 81780136), (2, 40890068), (4, 20445034), (8, 10222517), (59, 1386104), (118, 693052), (236, 346526), (472, 173263)]