405025504

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{691}}^1\times {\mathrm{1409}}^1$

素因数の和:2123

約数の個数: 48

約数和(自身を含む): 860585040

約数和(自身を除く): 455559536

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 691, 1382, 1409, 2764, 2818, 5528, 5636, 8983, 11056, 11272, 17966, 18317, 22112, 22544, 35932, 36634, 45088, 71864, 73268, 143728, 146536, 287456, 293072, 586144, 973619, 1947238, 3894476, 7788952, 12657047, 15577904, 25314094, 31155808, 50628188, 101256376, 202512752, 405025504]

約数ペア:

[(1, 405025504), (2, 202512752), (4, 101256376), (8, 50628188), (13, 31155808), (16, 25314094), (26, 15577904), (32, 12657047), (52, 7788952), (104, 3894476), (208, 1947238), (416, 973619), (691, 586144), (1382, 293072), (1409, 287456), (2764, 146536), (2818, 143728), (5528, 73268), (5636, 71864), (8983, 45088), (11056, 36634), (11272, 35932), (17966, 22544), (18317, 22112)]