66840680

素因数分解:

$2^3\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{1427}}^1$

素因数の和:2609

約数の個数: 32

約数和(自身を含む): 150625440

約数和(自身を除く): 83784760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1171, 1427, 2342, 2854, 4684, 5708, 5855, 7135, 9368, 11416, 11710, 14270, 23420, 28540, 46840, 57080, 1671017, 3342034, 6684068, 8355085, 13368136, 16710170, 33420340, 66840680]

約数ペア:

[(1, 66840680), (2, 33420340), (4, 16710170), (5, 13368136), (8, 8355085), (10, 6684068), (20, 3342034), (40, 1671017), (1171, 57080), (1427, 46840), (2342, 28540), (2854, 23420), (4684, 14270), (5708, 11710), (5855, 11416), (7135, 9368)]