19852960

素因数分解:

$2^5\times 5^1\times {\mathrm{167}}^1\times {\mathrm{743}}^1$

素因数の和:925

約数の個数: 48

約数和(自身を含む): 47246976

約数和(自身を除く): 27394016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 167, 334, 668, 743, 835, 1336, 1486, 1670, 2672, 2972, 3340, 3715, 5344, 5944, 6680, 7430, 11888, 13360, 14860, 23776, 26720, 29720, 59440, 118880, 124081, 248162, 496324, 620405, 992648, 1240810, 1985296, 2481620, 3970592, 4963240, 9926480, 19852960]

約数ペア:

[(1, 19852960), (2, 9926480), (4, 4963240), (5, 3970592), (8, 2481620), (10, 1985296), (16, 1240810), (20, 992648), (32, 620405), (40, 496324), (80, 248162), (160, 124081), (167, 118880), (334, 59440), (668, 29720), (743, 26720), (835, 23776), (1336, 14860), (1486, 13360), (1670, 11888), (2672, 7430), (2972, 6680), (3340, 5944), (3715, 5344)]