66821860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{25121}}^1$

素因数の和:25156

約数の個数: 48

約数和(自身を含む): 168819840

約数和(自身を除く): 101997980

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 25121, 50242, 100484, 125605, 175847, 251210, 351694, 477299, 502420, 703388, 879235, 954598, 1758470, 1909196, 2386495, 3341093, 3516940, 4772990, 6682186, 9545980, 13364372, 16705465, 33410930, 66821860]

約数ペア:

[(1, 66821860), (2, 33410930), (4, 16705465), (5, 13364372), (7, 9545980), (10, 6682186), (14, 4772990), (19, 3516940), (20, 3341093), (28, 2386495), (35, 1909196), (38, 1758470), (70, 954598), (76, 879235), (95, 703388), (133, 502420), (140, 477299), (190, 351694), (266, 251210), (380, 175847), (532, 125605), (665, 100484), (1330, 50242), (2660, 25121)]