51517120

素因数分解:

$2^6\times 5^1\times {\mathrm{199}}^1\times {\mathrm{809}}^1$

素因数の和:1025

約数の個数: 56

約数和(自身を含む): 123444000

約数和(自身を除く): 71926880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 199, 320, 398, 796, 809, 995, 1592, 1618, 1990, 3184, 3236, 3980, 4045, 6368, 6472, 7960, 8090, 12736, 12944, 15920, 16180, 25888, 31840, 32360, 51776, 63680, 64720, 129440, 160991, 258880, 321982, 643964, 804955, 1287928, 1609910, 2575856, 3219820, 5151712, 6439640, 10303424, 12879280, 25758560, 51517120]

約数ペア:

[(1, 51517120), (2, 25758560), (4, 12879280), (5, 10303424), (8, 6439640), (10, 5151712), (16, 3219820), (20, 2575856), (32, 1609910), (40, 1287928), (64, 804955), (80, 643964), (160, 321982), (199, 258880), (320, 160991), (398, 129440), (796, 64720), (809, 63680), (995, 51776), (1592, 32360), (1618, 31840), (1990, 25888), (3184, 16180), (3236, 15920), (3980, 12944), (4045, 12736), (6368, 8090), (6472, 7960)]