19207900

素因数分解:

$2^2\times 5^2\times {\mathrm{401}}^1\times {\mathrm{479}}^1$

素因数の和:894

約数の個数: 36

約数和(自身を含む): 41872320

約数和(自身を除く): 22664420

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 401, 479, 802, 958, 1604, 1916, 2005, 2395, 4010, 4790, 8020, 9580, 10025, 11975, 20050, 23950, 40100, 47900, 192079, 384158, 768316, 960395, 1920790, 3841580, 4801975, 9603950, 19207900]

約数ペア:

[(1, 19207900), (2, 9603950), (4, 4801975), (5, 3841580), (10, 1920790), (20, 960395), (25, 768316), (50, 384158), (100, 192079), (401, 47900), (479, 40100), (802, 23950), (958, 20050), (1604, 11975), (1916, 10025), (2005, 9580), (2395, 8020), (4010, 4790)]