1990293105

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1\times {\mathrm{347}}^1$

素因数の和:726

約数の個数: 64

約数和(自身を含む): 3434876928

約数和(自身を除く): 1444583823

約数列:

[1, 3, 5, 15, 17, 51, 83, 85, 249, 255, 271, 347, 415, 813, 1041, 1245, 1355, 1411, 1735, 4065, 4233, 4607, 5205, 5899, 7055, 13821, 17697, 21165, 22493, 23035, 28801, 29495, 67479, 69105, 86403, 88485, 94037, 112465, 144005, 282111, 337395, 382381, 432015, 470185, 489617, 1147143, 1410555, 1468851, 1598629, 1911905, 2448085, 4795887, 5735715, 7344255, 7805071, 7993145, 23415213, 23979435, 39025355, 117076065, 132686207, 398058621, 663431035, 1990293105]

約数ペア:

[(1, 1990293105), (3, 663431035), (5, 398058621), (15, 132686207), (17, 117076065), (51, 39025355), (83, 23979435), (85, 23415213), (249, 7993145), (255, 7805071), (271, 7344255), (347, 5735715), (415, 4795887), (813, 2448085), (1041, 1911905), (1245, 1598629), (1355, 1468851), (1411, 1410555), (1735, 1147143), (4065, 489617), (4233, 470185), (4607, 432015), (5205, 382381), (5899, 337395), (7055, 282111), (13821, 144005), (17697, 112465), (21165, 94037), (22493, 88485), (23035, 86403), (28801, 69105), (29495, 67479)]