255901984

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{617}}^1\times {\mathrm{997}}^1$

素因数の和:1637

約数の個数: 48

約数和(自身を含む): 543985848

約数和(自身を除く): 288083864

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 617, 997, 1234, 1994, 2468, 3988, 4936, 7976, 8021, 9872, 12961, 15952, 16042, 19744, 25922, 31904, 32084, 51844, 64168, 103688, 128336, 207376, 256672, 414752, 615149, 1230298, 2460596, 4921192, 7996937, 9842384, 15993874, 19684768, 31987748, 63975496, 127950992, 255901984]

約数ペア:

[(1, 255901984), (2, 127950992), (4, 63975496), (8, 31987748), (13, 19684768), (16, 15993874), (26, 9842384), (32, 7996937), (52, 4921192), (104, 2460596), (208, 1230298), (416, 615149), (617, 414752), (997, 256672), (1234, 207376), (1994, 128336), (2468, 103688), (3988, 64168), (4936, 51844), (7976, 32084), (8021, 31904), (9872, 25922), (12961, 19744), (15952, 16042)]