31519620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15919}}^1$

素因数の和:15945

約数の個数: 72

約数和(自身を含む): 104307840

約数和(自身を除く): 72788220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 15919, 31838, 47757, 63676, 79595, 95514, 143271, 159190, 175109, 191028, 238785, 286542, 318380, 350218, 477570, 525327, 573084, 700436, 716355, 875545, 955140, 1050654, 1432710, 1575981, 1751090, 2101308, 2626635, 2865420, 3151962, 3502180, 5253270, 6303924, 7879905, 10506540, 15759810, 31519620]

約数ペア:

[(1, 31519620), (2, 15759810), (3, 10506540), (4, 7879905), (5, 6303924), (6, 5253270), (9, 3502180), (10, 3151962), (11, 2865420), (12, 2626635), (15, 2101308), (18, 1751090), (20, 1575981), (22, 1432710), (30, 1050654), (33, 955140), (36, 875545), (44, 716355), (45, 700436), (55, 573084), (60, 525327), (66, 477570), (90, 350218), (99, 318380), (110, 286542), (132, 238785), (165, 191028), (180, 175109), (198, 159190), (220, 143271), (330, 95514), (396, 79595), (495, 63676), (660, 47757), (990, 31838), (1980, 15919)]