2910920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1193}}^1$

素因数の和:1265

約数の個数: 32

約数和(自身を含む): 6662520

約数和(自身を除く): 3751600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1193, 1220, 2386, 2440, 4772, 5965, 9544, 11930, 23860, 47720, 72773, 145546, 291092, 363865, 582184, 727730, 1455460, 2910920]

約数ペア:

[(1, 2910920), (2, 1455460), (4, 727730), (5, 582184), (8, 363865), (10, 291092), (20, 145546), (40, 72773), (61, 47720), (122, 23860), (244, 11930), (305, 9544), (488, 5965), (610, 4772), (1193, 2440), (1220, 2386)]