80393720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{182713}}^1$

素因数の和:182735

約数の個数: 32

約数和(自身を含む): 197331120

約数和(自身を除く): 116937400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 182713, 365426, 730852, 913565, 1461704, 1827130, 2009843, 3654260, 4019686, 7308520, 8039372, 10049215, 16078744, 20098430, 40196860, 80393720]

約数ペア:

[(1, 80393720), (2, 40196860), (4, 20098430), (5, 16078744), (8, 10049215), (10, 8039372), (11, 7308520), (20, 4019686), (22, 3654260), (40, 2009843), (44, 1827130), (55, 1461704), (88, 913565), (110, 730852), (220, 365426), (440, 182713)]