20123678192

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{489961}}^1$

素因数の和:490137

約数の個数: 40

約数和(自身を含む): 41556616992

約数和(自身を除く): 21432938800

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 151, 272, 302, 604, 1208, 2416, 2567, 5134, 10268, 20536, 41072, 489961, 979922, 1959844, 3919688, 7839376, 8329337, 16658674, 33317348, 66634696, 73984111, 133269392, 147968222, 295936444, 591872888, 1183745776, 1257729887, 2515459774, 5030919548, 10061839096, 20123678192]

約数ペア:

[(1, 20123678192), (2, 10061839096), (4, 5030919548), (8, 2515459774), (16, 1257729887), (17, 1183745776), (34, 591872888), (68, 295936444), (136, 147968222), (151, 133269392), (272, 73984111), (302, 66634696), (604, 33317348), (1208, 16658674), (2416, 8329337), (2567, 7839376), (5134, 3919688), (10268, 1959844), (20536, 979922), (41072, 489961)]