90849470

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{643}}^1$

素因数の和:920

約数の個数: 32

約数和(自身を含む): 166924800

約数和(自身を除く): 76075330

約数列:

[1, 2, 5, 10, 71, 142, 199, 355, 398, 643, 710, 995, 1286, 1990, 3215, 6430, 14129, 28258, 45653, 70645, 91306, 127957, 141290, 228265, 255914, 456530, 639785, 1279570, 9084947, 18169894, 45424735, 90849470]

約数ペア:

[(1, 90849470), (2, 45424735), (5, 18169894), (10, 9084947), (71, 1279570), (142, 639785), (199, 456530), (355, 255914), (398, 228265), (643, 141290), (710, 127957), (995, 91306), (1286, 70645), (1990, 45653), (3215, 28258), (6430, 14129)]