19438740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1367}}^1$

素因数の和:1461

約数の個数: 72

約数和(自身を含む): 59754240

約数和(自身を除く): 40315500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1367, 1422, 1580, 2370, 2734, 2844, 3555, 4101, 4740, 5468, 6835, 7110, 8202, 12303, 13670, 14220, 16404, 20505, 24606, 27340, 41010, 49212, 61515, 82020, 107993, 123030, 215986, 246060, 323979, 431972, 539965, 647958, 971937, 1079930, 1295916, 1619895, 1943874, 2159860, 3239790, 3887748, 4859685, 6479580, 9719370, 19438740]

約数ペア:

[(1, 19438740), (2, 9719370), (3, 6479580), (4, 4859685), (5, 3887748), (6, 3239790), (9, 2159860), (10, 1943874), (12, 1619895), (15, 1295916), (18, 1079930), (20, 971937), (30, 647958), (36, 539965), (45, 431972), (60, 323979), (79, 246060), (90, 215986), (158, 123030), (180, 107993), (237, 82020), (316, 61515), (395, 49212), (474, 41010), (711, 27340), (790, 24606), (948, 20505), (1185, 16404), (1367, 14220), (1422, 13670), (1580, 12303), (2370, 8202), (2734, 7110), (2844, 6835), (3555, 5468), (4101, 4740)]