397405760

素因数分解:

$2^6\times 5^1\times {\mathrm{1241893}}^1$

素因数の和:1241910

約数の個数: 28

約数和(自身を含む): 946323228

約数和(自身を除く): 548917468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1241893, 2483786, 4967572, 6209465, 9935144, 12418930, 19870288, 24837860, 39740576, 49675720, 79481152, 99351440, 198702880, 397405760]

約数ペア:

[(1, 397405760), (2, 198702880), (4, 99351440), (5, 79481152), (8, 49675720), (10, 39740576), (16, 24837860), (20, 19870288), (32, 12418930), (40, 9935144), (64, 6209465), (80, 4967572), (160, 2483786), (320, 1241893)]