20804927648

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{384479}}^1$

素因数の和:384597

約数の個数: 48

約数和(自身を含む): 43600032000

約数和(自身を除く): 22795104352

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 89, 152, 178, 304, 356, 608, 712, 1424, 1691, 2848, 3382, 6764, 13528, 27056, 54112, 384479, 768958, 1537916, 3075832, 6151664, 7305101, 12303328, 14610202, 29220404, 34218631, 58440808, 68437262, 116881616, 136874524, 233763232, 273749048, 547498096, 650153989, 1094996192, 1300307978, 2600615956, 5201231912, 10402463824, 20804927648]

約数ペア:

[(1, 20804927648), (2, 10402463824), (4, 5201231912), (8, 2600615956), (16, 1300307978), (19, 1094996192), (32, 650153989), (38, 547498096), (76, 273749048), (89, 233763232), (152, 136874524), (178, 116881616), (304, 68437262), (356, 58440808), (608, 34218631), (712, 29220404), (1424, 14610202), (1691, 12303328), (2848, 7305101), (3382, 6151664), (6764, 3075832), (13528, 1537916), (27056, 768958), (54112, 384479)]