64515440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{439}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 164989440

約数和(自身を除く): 100474000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 167, 176, 220, 334, 439, 440, 668, 835, 878, 880, 1336, 1670, 1756, 1837, 2195, 2672, 3340, 3512, 3674, 4390, 4829, 6680, 7024, 7348, 8780, 9185, 9658, 13360, 14696, 17560, 18370, 19316, 24145, 29392, 35120, 36740, 38632, 48290, 73313, 73480, 77264, 96580, 146626, 146960, 193160, 293252, 366565, 386320, 586504, 733130, 806443, 1173008, 1466260, 1612886, 2932520, 3225772, 4032215, 5865040, 6451544, 8064430, 12903088, 16128860, 32257720, 64515440]

約数ペア:

[(1, 64515440), (2, 32257720), (4, 16128860), (5, 12903088), (8, 8064430), (10, 6451544), (11, 5865040), (16, 4032215), (20, 3225772), (22, 2932520), (40, 1612886), (44, 1466260), (55, 1173008), (80, 806443), (88, 733130), (110, 586504), (167, 386320), (176, 366565), (220, 293252), (334, 193160), (439, 146960), (440, 146626), (668, 96580), (835, 77264), (878, 73480), (880, 73313), (1336, 48290), (1670, 38632), (1756, 36740), (1837, 35120), (2195, 29392), (2672, 24145), (3340, 19316), (3512, 18370), (3674, 17560), (4390, 14696), (4829, 13360), (6680, 9658), (7024, 9185), (7348, 8780)]