20785655878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{74071}}^1$

素因数の和:74380

約数の個数: 32

約数和(自身を含む): 34495034112

約数和(自身を除く): 13709378234

約数列:

[1, 2, 13, 26, 43, 86, 251, 502, 559, 1118, 3263, 6526, 10793, 21586, 74071, 140309, 148142, 280618, 962923, 1925846, 3185053, 6370106, 18591821, 37183642, 41405689, 82811378, 241693673, 483387346, 799448303, 1598896606, 10392827939, 20785655878]

約数ペア:

[(1, 20785655878), (2, 10392827939), (13, 1598896606), (26, 799448303), (43, 483387346), (86, 241693673), (251, 82811378), (502, 41405689), (559, 37183642), (1118, 18591821), (3263, 6370106), (6526, 3185053), (10793, 1925846), (21586, 962923), (74071, 280618), (140309, 148142)]