64804520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{147283}}^1$

素因数の和:147305

約数の個数: 32

約数和(自身を含む): 159066720

約数和(自身を除く): 94262200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 147283, 294566, 589132, 736415, 1178264, 1472830, 1620113, 2945660, 3240226, 5891320, 6480452, 8100565, 12960904, 16201130, 32402260, 64804520]

約数ペア:

[(1, 64804520), (2, 32402260), (4, 16201130), (5, 12960904), (8, 8100565), (10, 6480452), (11, 5891320), (20, 3240226), (22, 2945660), (40, 1620113), (44, 1472830), (55, 1178264), (88, 736415), (110, 589132), (220, 294566), (440, 147283)]