64180720

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{6317}}^1$

素因数の和:6457

約数の個数: 40

約数和(自身を含む): 150418944

約数和(自身を除く): 86238224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 6317, 10160, 12634, 25268, 31585, 50536, 63170, 101072, 126340, 252680, 505360, 802259, 1604518, 3209036, 4011295, 6418072, 8022590, 12836144, 16045180, 32090360, 64180720]

約数ペア:

[(1, 64180720), (2, 32090360), (4, 16045180), (5, 12836144), (8, 8022590), (10, 6418072), (16, 4011295), (20, 3209036), (40, 1604518), (80, 802259), (127, 505360), (254, 252680), (508, 126340), (635, 101072), (1016, 63170), (1270, 50536), (2032, 31585), (2540, 25268), (5080, 12634), (6317, 10160)]