128515868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{6521}}^1$

素因数の和:6917

約数の個数: 24

約数和(自身を含む): 242879280

約数和(自身を除く): 114363412

約数列:

[1, 2, 4, 13, 26, 52, 379, 758, 1516, 4927, 6521, 9854, 13042, 19708, 26084, 84773, 169546, 339092, 2471459, 4942918, 9885836, 32128967, 64257934, 128515868]

約数ペア:

[(1, 128515868), (2, 64257934), (4, 32128967), (13, 9885836), (26, 4942918), (52, 2471459), (379, 339092), (758, 169546), (1516, 84773), (4927, 26084), (6521, 19708), (9854, 13042)]