28805780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{35129}}^1$

素因数の和:35179

約数の個数: 24

約数和(自身を含む): 61969320

約数和(自身を除く): 33163540

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 35129, 70258, 140516, 175645, 351290, 702580, 1440289, 2880578, 5761156, 7201445, 14402890, 28805780]

約数ペア:

[(1, 28805780), (2, 14402890), (4, 7201445), (5, 5761156), (10, 2880578), (20, 1440289), (41, 702580), (82, 351290), (164, 175645), (205, 140516), (410, 70258), (820, 35129)]