12287990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{661}}^1$

素因数の和:705

約数の個数: 48

約数和(自身を含む): 26167536

約数和(自身を除く): 13879546

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 169, 286, 338, 661, 715, 845, 1322, 1430, 1690, 1859, 3305, 3718, 6610, 7271, 8593, 9295, 14542, 17186, 18590, 36355, 42965, 72710, 85930, 94523, 111709, 189046, 223418, 472615, 558545, 945230, 1117090, 1228799, 2457598, 6143995, 12287990]

約数ペア:

[(1, 12287990), (2, 6143995), (5, 2457598), (10, 1228799), (11, 1117090), (13, 945230), (22, 558545), (26, 472615), (55, 223418), (65, 189046), (110, 111709), (130, 94523), (143, 85930), (169, 72710), (286, 42965), (338, 36355), (661, 18590), (715, 17186), (845, 14542), (1322, 9295), (1430, 8593), (1690, 7271), (1859, 6610), (3305, 3718)]