20761390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5507}}^1$

素因数の和:5556

約数の個数: 32

約数和(自身を含む): 41640480

約数和(自身を除く): 20879090

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 5507, 11014, 27535, 55070, 71591, 143182, 159703, 319406, 357955, 715910, 798515, 1597030, 2076139, 4152278, 10380695, 20761390]

約数ペア:

[(1, 20761390), (2, 10380695), (5, 4152278), (10, 2076139), (13, 1597030), (26, 798515), (29, 715910), (58, 357955), (65, 319406), (130, 159703), (145, 143182), (290, 71591), (377, 55070), (754, 27535), (1885, 11014), (3770, 5507)]