123450920

素因数分解:

$2^3\times 5^1\times {\mathrm{947}}^1\times {\mathrm{3259}}^1$

素因数の和:4217

約数の個数: 32

約数和(自身を含む): 278143200

約数和(自身を除く): 154692280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 947, 1894, 3259, 3788, 4735, 6518, 7576, 9470, 13036, 16295, 18940, 26072, 32590, 37880, 65180, 130360, 3086273, 6172546, 12345092, 15431365, 24690184, 30862730, 61725460, 123450920]

約数ペア:

[(1, 123450920), (2, 61725460), (4, 30862730), (5, 24690184), (8, 15431365), (10, 12345092), (20, 6172546), (40, 3086273), (947, 130360), (1894, 65180), (3259, 37880), (3788, 32590), (4735, 26072), (6518, 18940), (7576, 16295), (9470, 13036)]