128705392

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:254

約数の個数: 80

約数和(自身を含む): 273196800

約数和(自身を除く): 144491408

約数列:

[1, 2, 4, 8, 16, 19, 38, 67, 71, 76, 89, 134, 142, 152, 178, 268, 284, 304, 356, 536, 568, 712, 1072, 1136, 1273, 1349, 1424, 1691, 2546, 2698, 3382, 4757, 5092, 5396, 5963, 6319, 6764, 9514, 10184, 10792, 11926, 12638, 13528, 19028, 20368, 21584, 23852, 25276, 27056, 38056, 47704, 50552, 76112, 90383, 95408, 101104, 113297, 120061, 180766, 226594, 240122, 361532, 423373, 453188, 480244, 723064, 846746, 906376, 960488, 1446128, 1693492, 1812752, 1920976, 3386984, 6773968, 8044087, 16088174, 32176348, 64352696, 128705392]

約数ペア:

[(1, 128705392), (2, 64352696), (4, 32176348), (8, 16088174), (16, 8044087), (19, 6773968), (38, 3386984), (67, 1920976), (71, 1812752), (76, 1693492), (89, 1446128), (134, 960488), (142, 906376), (152, 846746), (178, 723064), (268, 480244), (284, 453188), (304, 423373), (356, 361532), (536, 240122), (568, 226594), (712, 180766), (1072, 120061), (1136, 113297), (1273, 101104), (1349, 95408), (1424, 90383), (1691, 76112), (2546, 50552), (2698, 47704), (3382, 38056), (4757, 27056), (5092, 25276), (5396, 23852), (5963, 21584), (6319, 20368), (6764, 19028), (9514, 13528), (10184, 12638), (10792, 11926)]