1388289616

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{399853}}^1$

素因数の和:399899

約数の個数: 40

約数和(自身を含む): 3173241344

約数和(自身を除く): 1784951728

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 399853, 799706, 1599412, 2798971, 3198824, 5597942, 6397648, 11195884, 12395443, 22391768, 24790886, 44783536, 49581772, 86768101, 99163544, 173536202, 198327088, 347072404, 694144808, 1388289616]

約数ペア:

[(1, 1388289616), (2, 694144808), (4, 347072404), (7, 198327088), (8, 173536202), (14, 99163544), (16, 86768101), (28, 49581772), (31, 44783536), (56, 24790886), (62, 22391768), (112, 12395443), (124, 11195884), (217, 6397648), (248, 5597942), (434, 3198824), (496, 2798971), (868, 1599412), (1736, 799706), (3472, 399853)]