1643293840

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{42179}}^1$

素因数の和:42679

約数の個数: 40

約数和(自身を含む): 3828594240

約数和(自身を除く): 2185300400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 974, 1948, 2435, 3896, 4870, 7792, 9740, 19480, 38960, 42179, 84358, 168716, 210895, 337432, 421790, 674864, 843580, 1687160, 3374320, 20541173, 41082346, 82164692, 102705865, 164329384, 205411730, 328658768, 410823460, 821646920, 1643293840]

約数ペア:

[(1, 1643293840), (2, 821646920), (4, 410823460), (5, 328658768), (8, 205411730), (10, 164329384), (16, 102705865), (20, 82164692), (40, 41082346), (80, 20541173), (487, 3374320), (974, 1687160), (1948, 843580), (2435, 674864), (3896, 421790), (4870, 337432), (7792, 210895), (9740, 168716), (19480, 84358), (38960, 42179)]