128479408

素因数分解:

$2^4\times {\mathrm{977}}^1\times {\mathrm{8219}}^1$

素因数の和:9204

約数の個数: 20

約数和(自身を含む): 249213960

約数和(自身を除く): 120734552

約数列:

[1, 2, 4, 8, 16, 977, 1954, 3908, 7816, 8219, 15632, 16438, 32876, 65752, 131504, 8029963, 16059926, 32119852, 64239704, 128479408]

約数ペア:

[(1, 128479408), (2, 64239704), (4, 32119852), (8, 16059926), (16, 8029963), (977, 131504), (1954, 65752), (3908, 32876), (7816, 16438), (8219, 15632)]