278314478

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{1993}}^1$

素因数の和:2180

約数の個数: 32

約数和(自身を含む): 464298912

約数和(自身を除く): 185984434

約数列:

[1, 2, 13, 26, 41, 82, 131, 262, 533, 1066, 1703, 1993, 3406, 3986, 5371, 10742, 25909, 51818, 69823, 81713, 139646, 163426, 261083, 522166, 1062269, 2124538, 3394079, 6788158, 10704403, 21408806, 139157239, 278314478]

約数ペア:

[(1, 278314478), (2, 139157239), (13, 21408806), (26, 10704403), (41, 6788158), (82, 3394079), (131, 2124538), (262, 1062269), (533, 522166), (1066, 261083), (1703, 163426), (1993, 139646), (3406, 81713), (3986, 69823), (5371, 51818), (10742, 25909)]