80981964

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{107119}}^1$

素因数の和:107139

約数の個数: 48

約数和(自身を含む): 239948800

約数和(自身を除く): 158966836

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 107119, 214238, 321357, 428476, 642714, 749833, 964071, 1285428, 1499666, 1928142, 2249499, 2892213, 2999332, 3856284, 4498998, 5784426, 6748497, 8997996, 11568852, 13496994, 20245491, 26993988, 40490982, 80981964]

約数ペア:

[(1, 80981964), (2, 40490982), (3, 26993988), (4, 20245491), (6, 13496994), (7, 11568852), (9, 8997996), (12, 6748497), (14, 5784426), (18, 4498998), (21, 3856284), (27, 2999332), (28, 2892213), (36, 2249499), (42, 1928142), (54, 1499666), (63, 1285428), (84, 964071), (108, 749833), (126, 642714), (189, 428476), (252, 321357), (378, 214238), (756, 107119)]