18752080

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1493}}^1$

素因数の和:1663

約数の個数: 40

約数和(自身を含む): 43905672

約数和(自身を除く): 25153592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1493, 1570, 2512, 2986, 3140, 5972, 6280, 7465, 11944, 12560, 14930, 23888, 29860, 59720, 119440, 234401, 468802, 937604, 1172005, 1875208, 2344010, 3750416, 4688020, 9376040, 18752080]

約数ペア:

[(1, 18752080), (2, 9376040), (4, 4688020), (5, 3750416), (8, 2344010), (10, 1875208), (16, 1172005), (20, 937604), (40, 468802), (80, 234401), (157, 119440), (314, 59720), (628, 29860), (785, 23888), (1256, 14930), (1493, 12560), (1570, 11944), (2512, 7465), (2986, 6280), (3140, 5972)]