31075990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 64945152

約数和(自身を除く): 33869162

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 71, 110, 115, 142, 173, 230, 253, 346, 355, 506, 710, 781, 865, 1265, 1562, 1633, 1730, 1903, 2530, 3266, 3806, 3905, 3979, 7810, 7958, 8165, 9515, 12283, 16330, 17963, 19030, 19895, 24566, 35926, 39790, 43769, 61415, 87538, 89815, 122830, 135113, 179630, 218845, 270226, 282509, 437690, 565018, 675565, 1351130, 1412545, 2825090, 3107599, 6215198, 15537995, 31075990]

約数ペア:

[(1, 31075990), (2, 15537995), (5, 6215198), (10, 3107599), (11, 2825090), (22, 1412545), (23, 1351130), (46, 675565), (55, 565018), (71, 437690), (110, 282509), (115, 270226), (142, 218845), (173, 179630), (230, 135113), (253, 122830), (346, 89815), (355, 87538), (506, 61415), (710, 43769), (781, 39790), (865, 35926), (1265, 24566), (1562, 19895), (1633, 19030), (1730, 17963), (1903, 16330), (2530, 12283), (3266, 9515), (3806, 8165), (3905, 7958), (3979, 7810)]