28472080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3911}}^1$

素因数の和:3944

約数の個数: 80

約数和(自身を含む): 81494784

約数和(自身を除く): 53022704

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 3911, 7280, 7822, 15644, 19555, 27377, 31288, 39110, 50843, 54754, 62576, 78220, 101686, 109508, 136885, 156440, 203372, 219016, 254215, 273770, 312880, 355901, 406744, 438032, 508430, 547540, 711802, 813488, 1016860, 1095080, 1423604, 1779505, 2033720, 2190160, 2847208, 3559010, 4067440, 5694416, 7118020, 14236040, 28472080]

約数ペア:

[(1, 28472080), (2, 14236040), (4, 7118020), (5, 5694416), (7, 4067440), (8, 3559010), (10, 2847208), (13, 2190160), (14, 2033720), (16, 1779505), (20, 1423604), (26, 1095080), (28, 1016860), (35, 813488), (40, 711802), (52, 547540), (56, 508430), (65, 438032), (70, 406744), (80, 355901), (91, 312880), (104, 273770), (112, 254215), (130, 219016), (140, 203372), (182, 156440), (208, 136885), (260, 109508), (280, 101686), (364, 78220), (455, 62576), (520, 54754), (560, 50843), (728, 39110), (910, 31288), (1040, 27377), (1456, 19555), (1820, 15644), (3640, 7822), (3911, 7280)]