28485980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34739}}^1$

素因数の和:34789

約数の個数: 24

約数和(自身を含む): 61281360

約数和(自身を除く): 32795380

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 34739, 69478, 138956, 173695, 347390, 694780, 1424299, 2848598, 5697196, 7121495, 14242990, 28485980]

約数ペア:

[(1, 28485980), (2, 14242990), (4, 7121495), (5, 5697196), (10, 2848598), (20, 1424299), (41, 694780), (82, 347390), (164, 173695), (205, 138956), (410, 69478), (820, 34739)]