8956990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{643}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 18547200

約数和(自身を除く): 9590210

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 199, 398, 643, 995, 1286, 1393, 1990, 2786, 3215, 4501, 6430, 6965, 9002, 13930, 22505, 45010, 127957, 255914, 639785, 895699, 1279570, 1791398, 4478495, 8956990]

約数ペア:

[(1, 8956990), (2, 4478495), (5, 1791398), (7, 1279570), (10, 895699), (14, 639785), (35, 255914), (70, 127957), (199, 45010), (398, 22505), (643, 13930), (995, 9002), (1286, 6965), (1393, 6430), (1990, 4501), (2786, 3215)]