12221090

素因数分解:

$2^1\times 5^1\times 7^4\times {\mathrm{509}}^1$

素因数の和:544

約数の個数: 40

約数和(自身を含む): 25713180

約数和(自身を除く): 13492090

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 509, 686, 1018, 1715, 2401, 2545, 3430, 3563, 4802, 5090, 7126, 12005, 17815, 24010, 24941, 35630, 49882, 124705, 174587, 249410, 349174, 872935, 1222109, 1745870, 2444218, 6110545, 12221090]

約数ペア:

[(1, 12221090), (2, 6110545), (5, 2444218), (7, 1745870), (10, 1222109), (14, 872935), (35, 349174), (49, 249410), (70, 174587), (98, 124705), (245, 49882), (343, 35630), (490, 24941), (509, 24010), (686, 17815), (1018, 12005), (1715, 7126), (2401, 5090), (2545, 4802), (3430, 3563)]