205540456

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 433589760

約数和(自身を除く): 228049304

約数列:

[1, 2, 4, 8, 11, 22, 44, 67, 71, 88, 134, 142, 268, 284, 491, 536, 568, 737, 781, 982, 1474, 1562, 1964, 2948, 3124, 3928, 4757, 5401, 5896, 6248, 9514, 10802, 19028, 21604, 32897, 34861, 38056, 43208, 52327, 65794, 69722, 104654, 131588, 139444, 209308, 263176, 278888, 361867, 383471, 418616, 723734, 766942, 1447468, 1533884, 2335687, 2894936, 3067768, 4671374, 9342748, 18685496, 25692557, 51385114, 102770228, 205540456]

約数ペア:

[(1, 205540456), (2, 102770228), (4, 51385114), (8, 25692557), (11, 18685496), (22, 9342748), (44, 4671374), (67, 3067768), (71, 2894936), (88, 2335687), (134, 1533884), (142, 1447468), (268, 766942), (284, 723734), (491, 418616), (536, 383471), (568, 361867), (737, 278888), (781, 263176), (982, 209308), (1474, 139444), (1562, 131588), (1964, 104654), (2948, 69722), (3124, 65794), (3928, 52327), (4757, 43208), (5401, 38056), (5896, 34861), (6248, 32897), (9514, 21604), (10802, 19028)]