258972642

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{202639}}^1$

素因数の和:202718

約数の個数: 24

約数和(自身を含む): 569013120

約数和(自身を除く): 310040478

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 202639, 405278, 607917, 1215834, 1823751, 3647502, 14387369, 28774738, 43162107, 86324214, 129486321, 258972642]

約数ペア:

[(1, 258972642), (2, 129486321), (3, 86324214), (6, 43162107), (9, 28774738), (18, 14387369), (71, 3647502), (142, 1823751), (213, 1215834), (426, 607917), (639, 405278), (1278, 202639)]