2106208040

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{264599}}^1$

素因数の和:264809

約数の個数: 32

約数和(自身を含む): 4762800000

約数和(自身を除く): 2656591960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 264599, 529198, 1058396, 1322995, 2116792, 2645990, 5291980, 10583960, 52655201, 105310402, 210620804, 263276005, 421241608, 526552010, 1053104020, 2106208040]

約数ペア:

[(1, 2106208040), (2, 1053104020), (4, 526552010), (5, 421241608), (8, 263276005), (10, 210620804), (20, 105310402), (40, 52655201), (199, 10583960), (398, 5291980), (796, 2645990), (995, 2116792), (1592, 1322995), (1990, 1058396), (3980, 529198), (7960, 264599)]