78539216

素因数分解:

$2^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:300

約数の個数: 80

約数和(自身を含む): 180309888

約数和(自身を除く): 101770672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 53, 56, 101, 106, 112, 131, 202, 212, 262, 371, 404, 424, 524, 707, 742, 808, 848, 917, 1048, 1414, 1484, 1616, 1834, 2096, 2828, 2968, 3668, 5353, 5656, 5936, 6943, 7336, 10706, 11312, 13231, 13886, 14672, 21412, 26462, 27772, 37471, 42824, 48601, 52924, 55544, 74942, 85648, 92617, 97202, 105848, 111088, 149884, 185234, 194404, 211696, 299768, 370468, 388808, 599536, 701243, 740936, 777616, 1402486, 1481872, 2804972, 4908701, 5609944, 9817402, 11219888, 19634804, 39269608, 78539216]

約数ペア:

[(1, 78539216), (2, 39269608), (4, 19634804), (7, 11219888), (8, 9817402), (14, 5609944), (16, 4908701), (28, 2804972), (53, 1481872), (56, 1402486), (101, 777616), (106, 740936), (112, 701243), (131, 599536), (202, 388808), (212, 370468), (262, 299768), (371, 211696), (404, 194404), (424, 185234), (524, 149884), (707, 111088), (742, 105848), (808, 97202), (848, 92617), (917, 85648), (1048, 74942), (1414, 55544), (1484, 52924), (1616, 48601), (1834, 42824), (2096, 37471), (2828, 27772), (2968, 26462), (3668, 21412), (5353, 14672), (5656, 13886), (5936, 13231), (6943, 11312), (7336, 10706)]