242539240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1\times {\mathrm{353}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 556275600

約数和(自身を除く): 313736360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 193, 353, 356, 386, 445, 706, 712, 772, 890, 965, 1412, 1544, 1765, 1780, 1930, 2824, 3530, 3560, 3860, 7060, 7720, 14120, 17177, 31417, 34354, 62834, 68129, 68708, 85885, 125668, 136258, 137416, 157085, 171770, 251336, 272516, 314170, 340645, 343540, 545032, 628340, 681290, 687080, 1256680, 1362580, 2725160, 6063481, 12126962, 24253924, 30317405, 48507848, 60634810, 121269620, 242539240]

約数ペア:

[(1, 242539240), (2, 121269620), (4, 60634810), (5, 48507848), (8, 30317405), (10, 24253924), (20, 12126962), (40, 6063481), (89, 2725160), (178, 1362580), (193, 1256680), (353, 687080), (356, 681290), (386, 628340), (445, 545032), (706, 343540), (712, 340645), (772, 314170), (890, 272516), (965, 251336), (1412, 171770), (1544, 157085), (1765, 137416), (1780, 136258), (1930, 125668), (2824, 85885), (3530, 68708), (3560, 68129), (3860, 62834), (7060, 34354), (7720, 31417), (14120, 17177)]