1440040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 3830400

約数和(自身を除く): 2390360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 139, 140, 148, 185, 259, 278, 280, 296, 370, 518, 556, 695, 740, 973, 1036, 1112, 1295, 1390, 1480, 1946, 2072, 2590, 2780, 3892, 4865, 5143, 5180, 5560, 7784, 9730, 10286, 10360, 19460, 20572, 25715, 36001, 38920, 41144, 51430, 72002, 102860, 144004, 180005, 205720, 288008, 360010, 720020, 1440040]

約数ペア:

[(1, 1440040), (2, 720020), (4, 360010), (5, 288008), (7, 205720), (8, 180005), (10, 144004), (14, 102860), (20, 72002), (28, 51430), (35, 41144), (37, 38920), (40, 36001), (56, 25715), (70, 20572), (74, 19460), (139, 10360), (140, 10286), (148, 9730), (185, 7784), (259, 5560), (278, 5180), (280, 5143), (296, 4865), (370, 3892), (518, 2780), (556, 2590), (695, 2072), (740, 1946), (973, 1480), (1036, 1390), (1112, 1295)]