20889744

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:432

約数の個数: 80

約数和(自身を含む): 57288000

約数和(自身を除く): 36398256

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 43, 48, 58, 86, 87, 116, 129, 172, 174, 232, 258, 344, 348, 349, 464, 516, 688, 696, 698, 1032, 1047, 1247, 1392, 1396, 2064, 2094, 2494, 2792, 3741, 4188, 4988, 5584, 7482, 8376, 9976, 10121, 14964, 15007, 16752, 19952, 20242, 29928, 30014, 30363, 40484, 45021, 59856, 60028, 60726, 80968, 90042, 120056, 121452, 161936, 180084, 240112, 242904, 360168, 435203, 485808, 720336, 870406, 1305609, 1740812, 2611218, 3481624, 5222436, 6963248, 10444872, 20889744]

約数ペア:

[(1, 20889744), (2, 10444872), (3, 6963248), (4, 5222436), (6, 3481624), (8, 2611218), (12, 1740812), (16, 1305609), (24, 870406), (29, 720336), (43, 485808), (48, 435203), (58, 360168), (86, 242904), (87, 240112), (116, 180084), (129, 161936), (172, 121452), (174, 120056), (232, 90042), (258, 80968), (344, 60726), (348, 60028), (349, 59856), (464, 45021), (516, 40484), (688, 30363), (696, 30014), (698, 29928), (1032, 20242), (1047, 19952), (1247, 16752), (1392, 15007), (1396, 14964), (2064, 10121), (2094, 9976), (2494, 8376), (2792, 7482), (3741, 5584), (4188, 4988)]