11820920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{9533}}^1$

素因数の和:9575

約数の個数: 32

約数和(自身を含む): 27457920

約数和(自身を除く): 15637000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 9533, 19066, 38132, 47665, 76264, 95330, 190660, 295523, 381320, 591046, 1182092, 1477615, 2364184, 2955230, 5910460, 11820920]

約数ペア:

[(1, 11820920), (2, 5910460), (4, 2955230), (5, 2364184), (8, 1477615), (10, 1182092), (20, 591046), (31, 381320), (40, 295523), (62, 190660), (124, 95330), (155, 76264), (248, 47665), (310, 38132), (620, 19066), (1240, 9533)]