256436735

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 324352512

約数和(自身を除く): 67915777

約数列:

[1, 5, 43, 71, 107, 157, 215, 355, 535, 785, 3053, 4601, 6751, 7597, 11147, 15265, 16799, 23005, 33755, 37985, 55735, 83995, 326671, 479321, 722357, 1192729, 1633355, 2396605, 3611785, 5963645, 51287347, 256436735]

約数ペア:

[(1, 256436735), (5, 51287347), (43, 5963645), (71, 3611785), (107, 2396605), (157, 1633355), (215, 1192729), (355, 722357), (535, 479321), (785, 326671), (3053, 83995), (4601, 55735), (6751, 37985), (7597, 33755), (11147, 23005), (15265, 16799)]