80166520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1499}}^1$

素因数の和:1708

約数の個数: 64

約数和(自身を含む): 207360000

約数和(自身を除く): 127193480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 191, 280, 382, 764, 955, 1337, 1499, 1528, 1910, 2674, 2998, 3820, 5348, 5996, 6685, 7495, 7640, 10493, 10696, 11992, 13370, 14990, 20986, 26740, 29980, 41972, 52465, 53480, 59960, 83944, 104930, 209860, 286309, 419720, 572618, 1145236, 1431545, 2004163, 2290472, 2863090, 4008326, 5726180, 8016652, 10020815, 11452360, 16033304, 20041630, 40083260, 80166520]

約数ペア:

[(1, 80166520), (2, 40083260), (4, 20041630), (5, 16033304), (7, 11452360), (8, 10020815), (10, 8016652), (14, 5726180), (20, 4008326), (28, 2863090), (35, 2290472), (40, 2004163), (56, 1431545), (70, 1145236), (140, 572618), (191, 419720), (280, 286309), (382, 209860), (764, 104930), (955, 83944), (1337, 59960), (1499, 53480), (1528, 52465), (1910, 41972), (2674, 29980), (2998, 26740), (3820, 20986), (5348, 14990), (5996, 13370), (6685, 11992), (7495, 10696), (7640, 10493)]