17999720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 42768000

約数和(自身を除く): 24768280

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 59, 116, 118, 145, 232, 236, 263, 290, 295, 472, 526, 580, 590, 1052, 1160, 1180, 1315, 1711, 2104, 2360, 2630, 3422, 5260, 6844, 7627, 8555, 10520, 13688, 15254, 15517, 17110, 30508, 31034, 34220, 38135, 61016, 62068, 68440, 76270, 77585, 124136, 152540, 155170, 305080, 310340, 449993, 620680, 899986, 1799972, 2249965, 3599944, 4499930, 8999860, 17999720]

約数ペア:

[(1, 17999720), (2, 8999860), (4, 4499930), (5, 3599944), (8, 2249965), (10, 1799972), (20, 899986), (29, 620680), (40, 449993), (58, 310340), (59, 305080), (116, 155170), (118, 152540), (145, 124136), (232, 77585), (236, 76270), (263, 68440), (290, 62068), (295, 61016), (472, 38135), (526, 34220), (580, 31034), (590, 30508), (1052, 17110), (1160, 15517), (1180, 15254), (1315, 13688), (1711, 10520), (2104, 8555), (2360, 7627), (2630, 6844), (3422, 5260)]