81716220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{1237}}^1$

素因数の和:1619

約数の個数: 72

約数和(自身を含む): 248748864

約数和(自身を除く): 167032644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 367, 734, 1101, 1237, 1468, 1835, 2202, 2474, 3303, 3670, 3711, 4404, 4948, 5505, 6185, 6606, 7340, 7422, 11010, 11133, 12370, 13212, 14844, 16515, 18555, 22020, 22266, 24740, 33030, 37110, 44532, 55665, 66060, 74220, 111330, 222660, 453979, 907958, 1361937, 1815916, 2269895, 2723874, 4085811, 4539790, 5447748, 6809685, 8171622, 9079580, 13619370, 16343244, 20429055, 27238740, 40858110, 81716220]

約数ペア:

[(1, 81716220), (2, 40858110), (3, 27238740), (4, 20429055), (5, 16343244), (6, 13619370), (9, 9079580), (10, 8171622), (12, 6809685), (15, 5447748), (18, 4539790), (20, 4085811), (30, 2723874), (36, 2269895), (45, 1815916), (60, 1361937), (90, 907958), (180, 453979), (367, 222660), (734, 111330), (1101, 74220), (1237, 66060), (1468, 55665), (1835, 44532), (2202, 37110), (2474, 33030), (3303, 24740), (3670, 22266), (3711, 22020), (4404, 18555), (4948, 16515), (5505, 14844), (6185, 13212), (6606, 12370), (7340, 11133), (7422, 11010)]