161950180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{5813}}^1$

素因数の和:6028

約数の個数: 48

約数和(自身を含む): 390700800

約数和(自身を除く): 228750620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 3980, 5572, 5813, 6965, 11626, 13930, 23252, 27860, 29065, 40691, 58130, 81382, 116260, 162764, 203455, 406910, 813820, 1156787, 2313574, 4627148, 5783935, 8097509, 11567870, 16195018, 23135740, 32390036, 40487545, 80975090, 161950180]

約数ペア:

[(1, 161950180), (2, 80975090), (4, 40487545), (5, 32390036), (7, 23135740), (10, 16195018), (14, 11567870), (20, 8097509), (28, 5783935), (35, 4627148), (70, 2313574), (140, 1156787), (199, 813820), (398, 406910), (796, 203455), (995, 162764), (1393, 116260), (1990, 81382), (2786, 58130), (3980, 40691), (5572, 29065), (5813, 27860), (6965, 23252), (11626, 13930)]