20161556168

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1\times {\mathrm{10723}}^1$

素因数の和:11022

約数の個数: 64

約数和(自身を含む): 41347454400

約数和(自身を除く): 21185898232

約数列:

[1, 2, 4, 8, 13, 26, 52, 101, 104, 179, 202, 358, 404, 716, 808, 1313, 1432, 2327, 2626, 4654, 5252, 9308, 10504, 10723, 18079, 18616, 21446, 36158, 42892, 72316, 85784, 139399, 144632, 235027, 278798, 470054, 557596, 940108, 1083023, 1115192, 1880216, 1919417, 2166046, 3838834, 4332092, 7677668, 8664184, 14079299, 15355336, 24952421, 28158598, 49904842, 56317196, 99809684, 112634392, 193861117, 199619368, 387722234, 775444468, 1550888936, 2520194521, 5040389042, 10080778084, 20161556168]

約数ペア:

[(1, 20161556168), (2, 10080778084), (4, 5040389042), (8, 2520194521), (13, 1550888936), (26, 775444468), (52, 387722234), (101, 199619368), (104, 193861117), (179, 112634392), (202, 99809684), (358, 56317196), (404, 49904842), (716, 28158598), (808, 24952421), (1313, 15355336), (1432, 14079299), (2327, 8664184), (2626, 7677668), (4654, 4332092), (5252, 3838834), (9308, 2166046), (10504, 1919417), (10723, 1880216), (18079, 1115192), (18616, 1083023), (21446, 940108), (36158, 557596), (42892, 470054), (72316, 278798), (85784, 235027), (139399, 144632)]