67778440

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3329}}^1$

素因数の和:3849

約数の個数: 32

約数和(自身を含む): 152847000

約数和(自身を除く): 85068560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 3329, 4072, 5090, 6658, 10180, 13316, 16645, 20360, 26632, 33290, 66580, 133160, 1694461, 3388922, 6777844, 8472305, 13555688, 16944610, 33889220, 67778440]

約数ペア:

[(1, 67778440), (2, 33889220), (4, 16944610), (5, 13555688), (8, 8472305), (10, 6777844), (20, 3388922), (40, 1694461), (509, 133160), (1018, 66580), (2036, 33290), (2545, 26632), (3329, 20360), (4072, 16645), (5090, 13316), (6658, 10180)]