20160979888

素因数分解:

$2^4\times 7^1\times {\mathrm{173}}^1\times {\mathrm{811}}^1\times {\mathrm{1283}}^1$

素因数の和:2282

約数の個数: 80

約数和(自身を含む): 44990620416

約数和(自身を除く): 24829640528

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 173, 346, 692, 811, 1211, 1283, 1384, 1622, 2422, 2566, 2768, 3244, 4844, 5132, 5677, 6488, 8981, 9688, 10264, 11354, 12976, 17962, 19376, 20528, 22708, 35924, 45416, 71848, 90832, 140303, 143696, 221959, 280606, 443918, 561212, 887836, 982121, 1040513, 1122424, 1553713, 1775672, 1964242, 2081026, 2244848, 3107426, 3551344, 3928484, 4162052, 6214852, 7283591, 7856968, 8324104, 12429704, 14567182, 15713936, 16648208, 24859408, 29134364, 58268728, 116537456, 180008749, 360017498, 720034996, 1260061243, 1440069992, 2520122486, 2880139984, 5040244972, 10080489944, 20160979888]

約数ペア:

[(1, 20160979888), (2, 10080489944), (4, 5040244972), (7, 2880139984), (8, 2520122486), (14, 1440069992), (16, 1260061243), (28, 720034996), (56, 360017498), (112, 180008749), (173, 116537456), (346, 58268728), (692, 29134364), (811, 24859408), (1211, 16648208), (1283, 15713936), (1384, 14567182), (1622, 12429704), (2422, 8324104), (2566, 7856968), (2768, 7283591), (3244, 6214852), (4844, 4162052), (5132, 3928484), (5677, 3551344), (6488, 3107426), (8981, 2244848), (9688, 2081026), (10264, 1964242), (11354, 1775672), (12976, 1553713), (17962, 1122424), (19376, 1040513), (20528, 982121), (22708, 887836), (35924, 561212), (45416, 443918), (71848, 280606), (90832, 221959), (140303, 143696)]