20512781496

素因数分解:

$2^3\times 3^4\times {\mathrm{199}}^1\times {\mathrm{159073}}^1$

素因数の和:159290

約数の個数: 80

約数和(自身を含む): 57743862000

約数和(自身を除く): 37231080504

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 199, 216, 324, 398, 597, 648, 796, 1194, 1592, 1791, 2388, 3582, 4776, 5373, 7164, 10746, 14328, 16119, 21492, 32238, 42984, 64476, 128952, 159073, 318146, 477219, 636292, 954438, 1272584, 1431657, 1908876, 2863314, 3817752, 4294971, 5726628, 8589942, 11453256, 12884913, 17179884, 25769826, 31655527, 34359768, 51539652, 63311054, 94966581, 103079304, 126622108, 189933162, 253244216, 284899743, 379866324, 569799486, 759732648, 854699229, 1139598972, 1709398458, 2279197944, 2564097687, 3418796916, 5128195374, 6837593832, 10256390748, 20512781496]

約数ペア:

[(1, 20512781496), (2, 10256390748), (3, 6837593832), (4, 5128195374), (6, 3418796916), (8, 2564097687), (9, 2279197944), (12, 1709398458), (18, 1139598972), (24, 854699229), (27, 759732648), (36, 569799486), (54, 379866324), (72, 284899743), (81, 253244216), (108, 189933162), (162, 126622108), (199, 103079304), (216, 94966581), (324, 63311054), (398, 51539652), (597, 34359768), (648, 31655527), (796, 25769826), (1194, 17179884), (1592, 12884913), (1791, 11453256), (2388, 8589942), (3582, 5726628), (4776, 4294971), (5373, 3817752), (7164, 2863314), (10746, 1908876), (14328, 1431657), (16119, 1272584), (21492, 954438), (32238, 636292), (42984, 477219), (64476, 318146), (128952, 159073)]