19998250

素因数分解:

$2^1\times 5^3\times {\mathrm{167}}^1\times {\mathrm{479}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 17741270

約数列:

[1, 2, 5, 10, 25, 50, 125, 167, 250, 334, 479, 835, 958, 1670, 2395, 4175, 4790, 8350, 11975, 20875, 23950, 41750, 59875, 79993, 119750, 159986, 399965, 799930, 1999825, 3999650, 9999125, 19998250]

約数ペア:

[(1, 19998250), (2, 9999125), (5, 3999650), (10, 1999825), (25, 799930), (50, 399965), (125, 159986), (167, 119750), (250, 79993), (334, 59875), (479, 41750), (835, 23950), (958, 20875), (1670, 11975), (2395, 8350), (4175, 4790)]