189804520

素因数分解:

$2^3\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{4567}}^1$

素因数の和:5617

約数の個数: 32

約数和(自身を含む): 427564800

約数和(自身を除く): 237760280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1039, 2078, 4156, 4567, 5195, 8312, 9134, 10390, 18268, 20780, 22835, 36536, 41560, 45670, 91340, 182680, 4745113, 9490226, 18980452, 23725565, 37960904, 47451130, 94902260, 189804520]

約数ペア:

[(1, 189804520), (2, 94902260), (4, 47451130), (5, 37960904), (8, 23725565), (10, 18980452), (20, 9490226), (40, 4745113), (1039, 182680), (2078, 91340), (4156, 45670), (4567, 41560), (5195, 36536), (8312, 22835), (9134, 20780), (10390, 18268)]