265064513

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 320348160

約数和(自身を除く): 55283647

約数列:

[1, 7, 43, 71, 79, 157, 301, 497, 553, 1099, 3053, 3397, 5609, 6751, 11147, 12403, 21371, 23779, 39263, 47257, 78029, 86821, 241187, 479321, 533329, 880613, 1688309, 3355247, 3733303, 6164291, 37866359, 265064513]

約数ペア:

[(1, 265064513), (7, 37866359), (43, 6164291), (71, 3733303), (79, 3355247), (157, 1688309), (301, 880613), (497, 533329), (553, 479321), (1099, 241187), (3053, 86821), (3397, 78029), (5609, 47257), (6751, 39263), (11147, 23779), (12403, 21371)]