18802520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{283}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 46621440

約数和(自身を除く): 27818920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 151, 220, 283, 302, 440, 566, 604, 755, 1132, 1208, 1415, 1510, 1661, 2264, 2830, 3020, 3113, 3322, 5660, 6040, 6226, 6644, 8305, 11320, 12452, 13288, 15565, 16610, 24904, 31130, 33220, 42733, 62260, 66440, 85466, 124520, 170932, 213665, 341864, 427330, 470063, 854660, 940126, 1709320, 1880252, 2350315, 3760504, 4700630, 9401260, 18802520]

約数ペア:

[(1, 18802520), (2, 9401260), (4, 4700630), (5, 3760504), (8, 2350315), (10, 1880252), (11, 1709320), (20, 940126), (22, 854660), (40, 470063), (44, 427330), (55, 341864), (88, 213665), (110, 170932), (151, 124520), (220, 85466), (283, 66440), (302, 62260), (440, 42733), (566, 33220), (604, 31130), (755, 24904), (1132, 16610), (1208, 15565), (1415, 13288), (1510, 12452), (1661, 11320), (2264, 8305), (2830, 6644), (3020, 6226), (3113, 6040), (3322, 5660)]