20160560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:203

約数の個数: 120

約数和(自身を含む): 56402640

約数和(自身を除く): 36242080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 49, 56, 70, 74, 80, 98, 112, 139, 140, 148, 185, 196, 245, 259, 278, 280, 296, 370, 392, 490, 518, 556, 560, 592, 695, 740, 784, 973, 980, 1036, 1112, 1295, 1390, 1480, 1813, 1946, 1960, 2072, 2224, 2590, 2780, 2960, 3626, 3892, 3920, 4144, 4865, 5143, 5180, 5560, 6811, 7252, 7784, 9065, 9730, 10286, 10360, 11120, 13622, 14504, 15568, 18130, 19460, 20572, 20720, 25715, 27244, 29008, 34055, 36001, 36260, 38920, 41144, 51430, 54488, 68110, 72002, 72520, 77840, 82288, 102860, 108976, 136220, 144004, 145040, 180005, 205720, 252007, 272440, 288008, 360010, 411440, 504014, 544880, 576016, 720020, 1008028, 1260035, 1440040, 2016056, 2520070, 2880080, 4032112, 5040140, 10080280, 20160560]

約数ペア:

[(1, 20160560), (2, 10080280), (4, 5040140), (5, 4032112), (7, 2880080), (8, 2520070), (10, 2016056), (14, 1440040), (16, 1260035), (20, 1008028), (28, 720020), (35, 576016), (37, 544880), (40, 504014), (49, 411440), (56, 360010), (70, 288008), (74, 272440), (80, 252007), (98, 205720), (112, 180005), (139, 145040), (140, 144004), (148, 136220), (185, 108976), (196, 102860), (245, 82288), (259, 77840), (278, 72520), (280, 72002), (296, 68110), (370, 54488), (392, 51430), (490, 41144), (518, 38920), (556, 36260), (560, 36001), (592, 34055), (695, 29008), (740, 27244), (784, 25715), (973, 20720), (980, 20572), (1036, 19460), (1112, 18130), (1295, 15568), (1390, 14504), (1480, 13622), (1813, 11120), (1946, 10360), (1960, 10286), (2072, 9730), (2224, 9065), (2590, 7784), (2780, 7252), (2960, 6811), (3626, 5560), (3892, 5180), (3920, 5143), (4144, 4865)]