256702229

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:378

約数の個数: 32

約数和(自身を含む): 313632000

約数和(自身を除く): 56929771

約数列:

[1, 7, 29, 49, 131, 197, 203, 343, 917, 1379, 1421, 3799, 5713, 6419, 9653, 9947, 25807, 26593, 39991, 44933, 67571, 180649, 186151, 279937, 748403, 1264543, 1303057, 1959559, 5238821, 8851801, 36671747, 256702229]

約数ペア:

[(1, 256702229), (7, 36671747), (29, 8851801), (49, 5238821), (131, 1959559), (197, 1303057), (203, 1264543), (343, 748403), (917, 279937), (1379, 186151), (1421, 180649), (3799, 67571), (5713, 44933), (6419, 39991), (9653, 26593), (9947, 25807)]