918182020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{32957}}^1$

素因数の和:33172

約数の個数: 48

約数和(自身を含む): 2214777600

約数和(自身を除く): 1296595580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 3980, 5572, 6965, 13930, 27860, 32957, 65914, 131828, 164785, 230699, 329570, 461398, 659140, 922796, 1153495, 2306990, 4613980, 6558443, 13116886, 26233772, 32792215, 45909101, 65584430, 91818202, 131168860, 183636404, 229545505, 459091010, 918182020]

約数ペア:

[(1, 918182020), (2, 459091010), (4, 229545505), (5, 183636404), (7, 131168860), (10, 91818202), (14, 65584430), (20, 45909101), (28, 32792215), (35, 26233772), (70, 13116886), (140, 6558443), (199, 4613980), (398, 2306990), (796, 1153495), (995, 922796), (1393, 659140), (1990, 461398), (2786, 329570), (3980, 230699), (5572, 164785), (6965, 131828), (13930, 65914), (27860, 32957)]