287172940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{27143}}^1$

素因数の和:27198

約数の個数: 36

約数和(自身を含む): 630446544

約数和(自身を除く): 343273604

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 529, 1058, 2116, 2645, 5290, 10580, 27143, 54286, 108572, 135715, 271430, 542860, 624289, 1248578, 2497156, 3121445, 6242890, 12485780, 14358647, 28717294, 57434588, 71793235, 143586470, 287172940]

約数ペア:

[(1, 287172940), (2, 143586470), (4, 71793235), (5, 57434588), (10, 28717294), (20, 14358647), (23, 12485780), (46, 6242890), (92, 3121445), (115, 2497156), (230, 1248578), (460, 624289), (529, 542860), (1058, 271430), (2116, 135715), (2645, 108572), (5290, 54286), (10580, 27143)]