128968432

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{260017}}^1$

素因数の和:260056

約数の個数: 20

約数和(自身を含む): 257937856

約数和(自身を除く): 128969424

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 260017, 520034, 1040068, 2080136, 4160272, 8060527, 16121054, 32242108, 64484216, 128968432]

約数ペア:

[(1, 128968432), (2, 64484216), (4, 32242108), (8, 16121054), (16, 8060527), (31, 4160272), (62, 2080136), (124, 1040068), (248, 520034), (496, 260017)]