1997120

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^2$

素因数の和:175

約数の個数: 42

約数和(自身を含む): 4816602

約数和(自身を除く): 2819482

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1264, 1580, 2528, 3160, 5056, 6241, 6320, 12482, 12640, 24964, 25280, 31205, 49928, 62410, 99856, 124820, 199712, 249640, 399424, 499280, 998560, 1997120]

約数ペア:

[(1, 1997120), (2, 998560), (4, 499280), (5, 399424), (8, 249640), (10, 199712), (16, 124820), (20, 99856), (32, 62410), (40, 49928), (64, 31205), (79, 25280), (80, 24964), (158, 12640), (160, 12482), (316, 6320), (320, 6241), (395, 5056), (632, 3160), (790, 2528), (1264, 1580)]