2520291220

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{571}}^1\times {\mathrm{1109}}^1$

素因数の和:1888

約数の個数: 48

約数和(自身を含む): 5333328000

約数和(自身を除く): 2813036780

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 571, 796, 995, 1109, 1142, 1990, 2218, 2284, 2855, 3980, 4436, 5545, 5710, 11090, 11420, 22180, 113629, 220691, 227258, 441382, 454516, 568145, 633239, 882764, 1103455, 1136290, 1266478, 2206910, 2272580, 2532956, 3166195, 4413820, 6332390, 12664780, 126014561, 252029122, 504058244, 630072805, 1260145610, 2520291220]

約数ペア:

[(1, 2520291220), (2, 1260145610), (4, 630072805), (5, 504058244), (10, 252029122), (20, 126014561), (199, 12664780), (398, 6332390), (571, 4413820), (796, 3166195), (995, 2532956), (1109, 2272580), (1142, 2206910), (1990, 1266478), (2218, 1136290), (2284, 1103455), (2855, 882764), (3980, 633239), (4436, 568145), (5545, 454516), (5710, 441382), (11090, 227258), (11420, 220691), (22180, 113629)]