2178785860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2801}}^1$

素因数の和:2941

約数の個数: 96

約数和(自身を含む): 5083948800

約数和(自身を除く): 2905162940

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 89, 92, 95, 115, 178, 190, 230, 356, 380, 437, 445, 460, 874, 890, 1691, 1748, 1780, 2047, 2185, 2801, 3382, 4094, 4370, 5602, 6764, 8188, 8455, 8740, 10235, 11204, 14005, 16910, 20470, 28010, 33820, 38893, 40940, 53219, 56020, 64423, 77786, 106438, 128846, 155572, 194465, 212876, 249289, 257692, 266095, 322115, 388930, 498578, 532190, 644230, 777860, 997156, 1064380, 1224037, 1246445, 1288460, 2448074, 2492890, 4736491, 4896148, 4985780, 5733647, 6120185, 9472982, 11467294, 12240370, 18945964, 22934588, 23682455, 24480740, 28668235, 47364910, 57336470, 94729820, 108939293, 114672940, 217878586, 435757172, 544696465, 1089392930, 2178785860]

約数ペア:

[(1, 2178785860), (2, 1089392930), (4, 544696465), (5, 435757172), (10, 217878586), (19, 114672940), (20, 108939293), (23, 94729820), (38, 57336470), (46, 47364910), (76, 28668235), (89, 24480740), (92, 23682455), (95, 22934588), (115, 18945964), (178, 12240370), (190, 11467294), (230, 9472982), (356, 6120185), (380, 5733647), (437, 4985780), (445, 4896148), (460, 4736491), (874, 2492890), (890, 2448074), (1691, 1288460), (1748, 1246445), (1780, 1224037), (2047, 1064380), (2185, 997156), (2801, 777860), (3382, 644230), (4094, 532190), (4370, 498578), (5602, 388930), (6764, 322115), (8188, 266095), (8455, 257692), (8740, 249289), (10235, 212876), (11204, 194465), (14005, 155572), (16910, 128846), (20470, 106438), (28010, 77786), (33820, 64423), (38893, 56020), (40940, 53219)]