2100079120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{17489}}^1$

素因数の和:17600

約数の個数: 80

約数和(自身を含む): 5205024000

約数和(自身を除く): 3104944880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 79, 80, 95, 152, 158, 190, 304, 316, 380, 395, 632, 760, 790, 1264, 1501, 1520, 1580, 3002, 3160, 6004, 6320, 7505, 12008, 15010, 17489, 24016, 30020, 34978, 60040, 69956, 87445, 120080, 139912, 174890, 279824, 332291, 349780, 664582, 699560, 1329164, 1381631, 1399120, 1661455, 2658328, 2763262, 3322910, 5316656, 5526524, 6645820, 6908155, 11053048, 13291640, 13816310, 22106096, 26250989, 26583280, 27632620, 52501978, 55265240, 105003956, 110530480, 131254945, 210007912, 262509890, 420015824, 525019780, 1050039560, 2100079120]

約数ペア:

[(1, 2100079120), (2, 1050039560), (4, 525019780), (5, 420015824), (8, 262509890), (10, 210007912), (16, 131254945), (19, 110530480), (20, 105003956), (38, 55265240), (40, 52501978), (76, 27632620), (79, 26583280), (80, 26250989), (95, 22106096), (152, 13816310), (158, 13291640), (190, 11053048), (304, 6908155), (316, 6645820), (380, 5526524), (395, 5316656), (632, 3322910), (760, 2763262), (790, 2658328), (1264, 1661455), (1501, 1399120), (1520, 1381631), (1580, 1329164), (3002, 699560), (3160, 664582), (6004, 349780), (6320, 332291), (7505, 279824), (12008, 174890), (15010, 139912), (17489, 120080), (24016, 87445), (30020, 69956), (34978, 60040)]