287735540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{20641}}^1$

素因数の和:20708

約数の個数: 48

約数和(自身を含む): 655424784

約数和(自身を除く): 367689244

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1394, 2788, 3485, 6970, 13940, 20641, 41282, 82564, 103205, 206410, 350897, 412820, 701794, 846281, 1403588, 1692562, 1754485, 3385124, 3508970, 4231405, 7017940, 8462810, 14386777, 16925620, 28773554, 57547108, 71933885, 143867770, 287735540]

約数ペア:

[(1, 287735540), (2, 143867770), (4, 71933885), (5, 57547108), (10, 28773554), (17, 16925620), (20, 14386777), (34, 8462810), (41, 7017940), (68, 4231405), (82, 3508970), (85, 3385124), (164, 1754485), (170, 1692562), (205, 1403588), (340, 846281), (410, 701794), (697, 412820), (820, 350897), (1394, 206410), (2788, 103205), (3485, 82564), (6970, 41282), (13940, 20641)]