128543408

素因数分解:

$2^4\times 7^1\times {\mathrm{1147709}}^1$

素因数の和:1147724

約数の個数: 20

約数和(自身を含む): 284632080

約数和(自身を除く): 156088672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1147709, 2295418, 4590836, 8033963, 9181672, 16067926, 18363344, 32135852, 64271704, 128543408]

約数ペア:

[(1, 128543408), (2, 64271704), (4, 32135852), (7, 18363344), (8, 16067926), (14, 9181672), (16, 8033963), (28, 4590836), (56, 2295418), (112, 1147709)]