20187006784

素因数分解:

$2^6\times 7^1\times {\mathrm{97}}^1\times {\mathrm{464539}}^1$

素因数の和:464655

約数の個数: 56

約数和(自身を含む): 46253318720

約数和(自身を除く): 26066311936

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 97, 112, 194, 224, 388, 448, 679, 776, 1358, 1552, 2716, 3104, 5432, 6208, 10864, 21728, 43456, 464539, 929078, 1858156, 3251773, 3716312, 6503546, 7432624, 13007092, 14865248, 26014184, 29730496, 45060283, 52028368, 90120566, 104056736, 180241132, 208113472, 315421981, 360482264, 630843962, 720964528, 1261687924, 1441929056, 2523375848, 2883858112, 5046751696, 10093503392, 20187006784]

約数ペア:

[(1, 20187006784), (2, 10093503392), (4, 5046751696), (7, 2883858112), (8, 2523375848), (14, 1441929056), (16, 1261687924), (28, 720964528), (32, 630843962), (56, 360482264), (64, 315421981), (97, 208113472), (112, 180241132), (194, 104056736), (224, 90120566), (388, 52028368), (448, 45060283), (679, 29730496), (776, 26014184), (1358, 14865248), (1552, 13007092), (2716, 7432624), (3104, 6503546), (5432, 3716312), (6208, 3251773), (10864, 1858156), (21728, 929078), (43456, 464539)]