28649980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34939}}^1$

素因数の和:34989

約数の個数: 24

約数和(自身を含む): 61634160

約数和(自身を除く): 32984180

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 34939, 69878, 139756, 174695, 349390, 698780, 1432499, 2864998, 5729996, 7162495, 14324990, 28649980]

約数ペア:

[(1, 28649980), (2, 14324990), (4, 7162495), (5, 5729996), (10, 2864998), (20, 1432499), (41, 698780), (82, 349390), (164, 174695), (205, 139756), (410, 69878), (820, 34939)]