78479720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1031}}^1$

素因数の和:1226

約数の個数: 64

約数和(自身を含む): 193933440

約数和(自身を除く): 115453720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 173, 220, 346, 440, 692, 865, 1031, 1384, 1730, 1903, 2062, 3460, 3806, 4124, 5155, 6920, 7612, 8248, 9515, 10310, 11341, 15224, 19030, 20620, 22682, 38060, 41240, 45364, 56705, 76120, 90728, 113410, 178363, 226820, 356726, 453640, 713452, 891815, 1426904, 1783630, 1961993, 3567260, 3923986, 7134520, 7847972, 9809965, 15695944, 19619930, 39239860, 78479720]

約数ペア:

[(1, 78479720), (2, 39239860), (4, 19619930), (5, 15695944), (8, 9809965), (10, 7847972), (11, 7134520), (20, 3923986), (22, 3567260), (40, 1961993), (44, 1783630), (55, 1426904), (88, 891815), (110, 713452), (173, 453640), (220, 356726), (346, 226820), (440, 178363), (692, 113410), (865, 90728), (1031, 76120), (1384, 56705), (1730, 45364), (1903, 41240), (2062, 38060), (3460, 22682), (3806, 20620), (4124, 19030), (5155, 15224), (6920, 11341), (7612, 10310), (8248, 9515)]