42378920

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{4751}}^1$

素因数の和:4985

約数の個数: 32

約数和(自身を含む): 95800320

約数和(自身を除く): 53421400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 4751, 8920, 9502, 19004, 23755, 38008, 47510, 95020, 190040, 1059473, 2118946, 4237892, 5297365, 8475784, 10594730, 21189460, 42378920]

約数ペア:

[(1, 42378920), (2, 21189460), (4, 10594730), (5, 8475784), (8, 5297365), (10, 4237892), (20, 2118946), (40, 1059473), (223, 190040), (446, 95020), (892, 47510), (1115, 38008), (1784, 23755), (2230, 19004), (4460, 9502), (4751, 8920)]