9781749220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1\times {\mathrm{42283}}^1$

素因数の和:42604

約数の個数: 48

約数和(自身を含む): 21098024640

約数和(自身を除く): 11316275420

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 269, 430, 538, 860, 1076, 1345, 2690, 5380, 11567, 23134, 42283, 46268, 57835, 84566, 115670, 169132, 211415, 231340, 422830, 845660, 1818169, 3636338, 7272676, 9090845, 11374127, 18181690, 22748254, 36363380, 45496508, 56870635, 113741270, 227482540, 489087461, 978174922, 1956349844, 2445437305, 4890874610, 9781749220]

約数ペア:

[(1, 9781749220), (2, 4890874610), (4, 2445437305), (5, 1956349844), (10, 978174922), (20, 489087461), (43, 227482540), (86, 113741270), (172, 56870635), (215, 45496508), (269, 36363380), (430, 22748254), (538, 18181690), (860, 11374127), (1076, 9090845), (1345, 7272676), (2690, 3636338), (5380, 1818169), (11567, 845660), (23134, 422830), (42283, 231340), (46268, 211415), (57835, 169132), (84566, 115670)]