638184327424

素因数分解:

$2^8\times 7^1\times {\mathrm{557}}^1\times {\mathrm{639371}}^1$

素因数の和:639951

約数の個数: 72

約数和(自身を含む): 1458474026688

約数和(自身を除く): 820289699264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 557, 896, 1114, 1792, 2228, 3899, 4456, 7798, 8912, 15596, 17824, 31192, 35648, 62384, 71296, 124768, 142592, 249536, 499072, 639371, 998144, 1278742, 2557484, 4475597, 5114968, 8951194, 10229936, 17902388, 20459872, 35804776, 40919744, 71609552, 81839488, 143219104, 163678976, 286438208, 356129647, 572876416, 712259294, 1145752832, 1424518588, 2492907529, 2849037176, 4985815058, 5698074352, 9971630116, 11396148704, 19943260232, 22792297408, 39886520464, 45584594816, 79773040928, 91169189632, 159546081856, 319092163712, 638184327424]

約数ペア:

[(1, 638184327424), (2, 319092163712), (4, 159546081856), (7, 91169189632), (8, 79773040928), (14, 45584594816), (16, 39886520464), (28, 22792297408), (32, 19943260232), (56, 11396148704), (64, 9971630116), (112, 5698074352), (128, 4985815058), (224, 2849037176), (256, 2492907529), (448, 1424518588), (557, 1145752832), (896, 712259294), (1114, 572876416), (1792, 356129647), (2228, 286438208), (3899, 163678976), (4456, 143219104), (7798, 81839488), (8912, 71609552), (15596, 40919744), (17824, 35804776), (31192, 20459872), (35648, 17902388), (62384, 10229936), (71296, 8951194), (124768, 5114968), (142592, 4475597), (249536, 2557484), (499072, 1278742), (639371, 998144)]