20012133040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1051}}^1\times {\mathrm{12527}}^1$

素因数の和:13610

約数の個数: 80

約数和(自身を含む): 49027576320

約数和(自身を除く): 29015443280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1051, 1520, 2102, 4204, 5255, 8408, 10510, 12527, 16816, 19969, 21020, 25054, 39938, 42040, 50108, 62635, 79876, 84080, 99845, 100216, 125270, 159752, 199690, 200432, 238013, 250540, 319504, 399380, 476026, 501080, 798760, 952052, 1002160, 1190065, 1597520, 1904104, 2380130, 3808208, 4760260, 9520520, 13165877, 19041040, 26331754, 52663508, 65829385, 105327016, 131658770, 210654032, 250151663, 263317540, 500303326, 526635080, 1000606652, 1053270160, 1250758315, 2001213304, 2501516630, 4002426608, 5003033260, 10006066520, 20012133040]

約数ペア:

[(1, 20012133040), (2, 10006066520), (4, 5003033260), (5, 4002426608), (8, 2501516630), (10, 2001213304), (16, 1250758315), (19, 1053270160), (20, 1000606652), (38, 526635080), (40, 500303326), (76, 263317540), (80, 250151663), (95, 210654032), (152, 131658770), (190, 105327016), (304, 65829385), (380, 52663508), (760, 26331754), (1051, 19041040), (1520, 13165877), (2102, 9520520), (4204, 4760260), (5255, 3808208), (8408, 2380130), (10510, 1904104), (12527, 1597520), (16816, 1190065), (19969, 1002160), (21020, 952052), (25054, 798760), (39938, 501080), (42040, 476026), (50108, 399380), (62635, 319504), (79876, 250540), (84080, 238013), (99845, 200432), (100216, 199690), (125270, 159752)]