15438840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{128657}}^1$

素因数の和:128671

約数の個数: 32

約数和(自身を含む): 46316880

約数和(自身を除く): 30878040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 128657, 257314, 385971, 514628, 643285, 771942, 1029256, 1286570, 1543884, 1929855, 2573140, 3087768, 3859710, 5146280, 7719420, 15438840]

約数ペア:

[(1, 15438840), (2, 7719420), (3, 5146280), (4, 3859710), (5, 3087768), (6, 2573140), (8, 1929855), (10, 1543884), (12, 1286570), (15, 1029256), (20, 771942), (24, 643285), (30, 514628), (40, 385971), (60, 257314), (120, 128657)]