998560

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^2$

素因数の和:173

約数の個数: 36

約数和(自身を含む): 2389338

約数和(自身を除く): 1390778

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1580, 2528, 3160, 6241, 6320, 12482, 12640, 24964, 31205, 49928, 62410, 99856, 124820, 199712, 249640, 499280, 998560]

約数ペア:

[(1, 998560), (2, 499280), (4, 249640), (5, 199712), (8, 124820), (10, 99856), (16, 62410), (20, 49928), (32, 31205), (40, 24964), (79, 12640), (80, 12482), (158, 6320), (160, 6241), (316, 3160), (395, 2528), (632, 1580), (790, 1264)]