28128568

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{881}}^1$

素因数の和:1207

約数の個数: 32

約数和(自身を含む): 57047760

約数和(自身を除く): 28919192

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 307, 614, 881, 1228, 1762, 2456, 3524, 3991, 7048, 7982, 11453, 15964, 22906, 31928, 45812, 91624, 270467, 540934, 1081868, 2163736, 3516071, 7032142, 14064284, 28128568]

約数ペア:

[(1, 28128568), (2, 14064284), (4, 7032142), (8, 3516071), (13, 2163736), (26, 1081868), (52, 540934), (104, 270467), (307, 91624), (614, 45812), (881, 31928), (1228, 22906), (1762, 15964), (2456, 11453), (3524, 7982), (3991, 7048)]