396146120

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1\times {\mathrm{499}}^1$

素因数の和:822

約数の個数: 64

約数和(自身を含む): 907200000

約数和(自身を除く): 511053880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 223, 356, 445, 446, 499, 712, 890, 892, 998, 1115, 1780, 1784, 1996, 2230, 2495, 3560, 3992, 4460, 4990, 8920, 9980, 19847, 19960, 39694, 44411, 79388, 88822, 99235, 111277, 158776, 177644, 198470, 222055, 222554, 355288, 396940, 444110, 445108, 556385, 793880, 888220, 890216, 1112770, 1776440, 2225540, 4451080, 9903653, 19807306, 39614612, 49518265, 79229224, 99036530, 198073060, 396146120]

約数ペア:

[(1, 396146120), (2, 198073060), (4, 99036530), (5, 79229224), (8, 49518265), (10, 39614612), (20, 19807306), (40, 9903653), (89, 4451080), (178, 2225540), (223, 1776440), (356, 1112770), (445, 890216), (446, 888220), (499, 793880), (712, 556385), (890, 445108), (892, 444110), (998, 396940), (1115, 355288), (1780, 222554), (1784, 222055), (1996, 198470), (2230, 177644), (2495, 158776), (3560, 111277), (3992, 99235), (4460, 88822), (4990, 79388), (8920, 44411), (9980, 39694), (19847, 19960)]