399594320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{1741}}^1$

素因数の和:1924

約数の個数: 80

約数和(自身を含む): 984996480

約数和(自身を除く): 585402160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 151, 152, 190, 302, 304, 380, 604, 755, 760, 1208, 1510, 1520, 1741, 2416, 2869, 3020, 3482, 5738, 6040, 6964, 8705, 11476, 12080, 13928, 14345, 17410, 22952, 27856, 28690, 33079, 34820, 45904, 57380, 66158, 69640, 114760, 132316, 139280, 165395, 229520, 262891, 264632, 330790, 525782, 529264, 661580, 1051564, 1314455, 1323160, 2103128, 2628910, 2646320, 4206256, 4994929, 5257820, 9989858, 10515640, 19979716, 21031280, 24974645, 39959432, 49949290, 79918864, 99898580, 199797160, 399594320]

約数ペア:

[(1, 399594320), (2, 199797160), (4, 99898580), (5, 79918864), (8, 49949290), (10, 39959432), (16, 24974645), (19, 21031280), (20, 19979716), (38, 10515640), (40, 9989858), (76, 5257820), (80, 4994929), (95, 4206256), (151, 2646320), (152, 2628910), (190, 2103128), (302, 1323160), (304, 1314455), (380, 1051564), (604, 661580), (755, 529264), (760, 525782), (1208, 330790), (1510, 264632), (1520, 262891), (1741, 229520), (2416, 165395), (2869, 139280), (3020, 132316), (3482, 114760), (5738, 69640), (6040, 66158), (6964, 57380), (8705, 45904), (11476, 34820), (12080, 33079), (13928, 28690), (14345, 27856), (17410, 22952)]