26640740

素因数分解:

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

素因数の和:229

約数の個数: 72

約数和(自身を含む): 66185280

約数和(自身を除く): 39544540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 139, 140, 148, 185, 259, 278, 370, 518, 556, 695, 740, 973, 1036, 1295, 1369, 1390, 1946, 2590, 2738, 2780, 3892, 4865, 5143, 5180, 5476, 6845, 9583, 9730, 10286, 13690, 19166, 19460, 20572, 25715, 27380, 36001, 38332, 47915, 51430, 72002, 95830, 102860, 144004, 180005, 190291, 191660, 360010, 380582, 720020, 761164, 951455, 1332037, 1902910, 2664074, 3805820, 5328148, 6660185, 13320370, 26640740]

約数ペア:

[(1, 26640740), (2, 13320370), (4, 6660185), (5, 5328148), (7, 3805820), (10, 2664074), (14, 1902910), (20, 1332037), (28, 951455), (35, 761164), (37, 720020), (70, 380582), (74, 360010), (139, 191660), (140, 190291), (148, 180005), (185, 144004), (259, 102860), (278, 95830), (370, 72002), (518, 51430), (556, 47915), (695, 38332), (740, 36001), (973, 27380), (1036, 25715), (1295, 20572), (1369, 19460), (1390, 19166), (1946, 13690), (2590, 10286), (2738, 9730), (2780, 9583), (3892, 6845), (4865, 5476), (5143, 5180)]