51194390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1999}}^1$

素因数の和:2216

約数の個数: 32

約数和(自身を含む): 99792000

約数和(自身を除く): 48597610

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 985, 1970, 1999, 2561, 3998, 5122, 9995, 12805, 19990, 25610, 25987, 51974, 129935, 259870, 393803, 787606, 1969015, 3938030, 5119439, 10238878, 25597195, 51194390]

約数ペア:

[(1, 51194390), (2, 25597195), (5, 10238878), (10, 5119439), (13, 3938030), (26, 1969015), (65, 787606), (130, 393803), (197, 259870), (394, 129935), (985, 51974), (1970, 25987), (1999, 25610), (2561, 19990), (3998, 12805), (5122, 9995)]