128294908

素因数分解:

$2^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{10631}}^1$

素因数の和:11073

約数の個数: 24

約数和(自身を含む): 257209344

約数和(自身を除く): 128914436

約数列:

[1, 2, 4, 7, 14, 28, 431, 862, 1724, 3017, 6034, 10631, 12068, 21262, 42524, 74417, 148834, 297668, 4581961, 9163922, 18327844, 32073727, 64147454, 128294908]

約数ペア:

[(1, 128294908), (2, 64147454), (4, 32073727), (7, 18327844), (14, 9163922), (28, 4581961), (431, 297668), (862, 148834), (1724, 74417), (3017, 42524), (6034, 21262), (10631, 12068)]