81438081984

素因数分解:

$2^6\times 3^2\times 7^1\times {\mathrm{20197937}}^1$

素因数の和:20197962

約数の個数: 84

約数和(自身を含む): 266774365104

約数和(自身を除く): 185336283120

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 64, 72, 84, 96, 112, 126, 144, 168, 192, 224, 252, 288, 336, 448, 504, 576, 672, 1008, 1344, 2016, 4032, 20197937, 40395874, 60593811, 80791748, 121187622, 141385559, 161583496, 181781433, 242375244, 282771118, 323166992, 363562866, 424156677, 484750488, 565542236, 646333984, 727125732, 848313354, 969500976, 1131084472, 1272470031, 1292667968, 1454251464, 1696626708, 1939001952, 2262168944, 2544940062, 2908502928, 3393253416, 3878003904, 4524337888, 5089880124, 5817005856, 6786506832, 9048675776, 10179760248, 11634011712, 13573013664, 20359520496, 27146027328, 40719040992, 81438081984]

約数ペア:

[(1, 81438081984), (2, 40719040992), (3, 27146027328), (4, 20359520496), (6, 13573013664), (7, 11634011712), (8, 10179760248), (9, 9048675776), (12, 6786506832), (14, 5817005856), (16, 5089880124), (18, 4524337888), (21, 3878003904), (24, 3393253416), (28, 2908502928), (32, 2544940062), (36, 2262168944), (42, 1939001952), (48, 1696626708), (56, 1454251464), (63, 1292667968), (64, 1272470031), (72, 1131084472), (84, 969500976), (96, 848313354), (112, 727125732), (126, 646333984), (144, 565542236), (168, 484750488), (192, 424156677), (224, 363562866), (252, 323166992), (288, 282771118), (336, 242375244), (448, 181781433), (504, 161583496), (576, 141385559), (672, 121187622), (1008, 80791748), (1344, 60593811), (2016, 40395874), (4032, 20197937)]