18030780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{919}}^1$

素因数の和:1043

約数の個数: 72

約数和(自身を含む): 55255200

約数和(自身を除く): 37224420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 919, 981, 1090, 1308, 1635, 1838, 1962, 2180, 2757, 3270, 3676, 3924, 4595, 4905, 5514, 6540, 8271, 9190, 9810, 11028, 13785, 16542, 18380, 19620, 27570, 33084, 41355, 55140, 82710, 100171, 165420, 200342, 300513, 400684, 500855, 601026, 901539, 1001710, 1202052, 1502565, 1803078, 2003420, 3005130, 3606156, 4507695, 6010260, 9015390, 18030780]

約数ペア:

[(1, 18030780), (2, 9015390), (3, 6010260), (4, 4507695), (5, 3606156), (6, 3005130), (9, 2003420), (10, 1803078), (12, 1502565), (15, 1202052), (18, 1001710), (20, 901539), (30, 601026), (36, 500855), (45, 400684), (60, 300513), (90, 200342), (109, 165420), (180, 100171), (218, 82710), (327, 55140), (436, 41355), (545, 33084), (654, 27570), (919, 19620), (981, 18380), (1090, 16542), (1308, 13785), (1635, 11028), (1838, 9810), (1962, 9190), (2180, 8271), (2757, 6540), (3270, 5514), (3676, 4905), (3924, 4595)]