128224719

素因数分解:

$3^2\times 7^3\times {\mathrm{73}}^1\times {\mathrm{569}}^1$

素因数の和:669

約数の個数: 48

約数和(自身を含む): 219336000

約数和(自身を除く): 91111281

約数列:

[1, 3, 7, 9, 21, 49, 63, 73, 147, 219, 343, 441, 511, 569, 657, 1029, 1533, 1707, 3087, 3577, 3983, 4599, 5121, 10731, 11949, 25039, 27881, 32193, 35847, 41537, 75117, 83643, 124611, 195167, 225351, 250929, 290759, 373833, 585501, 872277, 1756503, 2035313, 2616831, 6105939, 14247191, 18317817, 42741573, 128224719]

約数ペア:

[(1, 128224719), (3, 42741573), (7, 18317817), (9, 14247191), (21, 6105939), (49, 2616831), (63, 2035313), (73, 1756503), (147, 872277), (219, 585501), (343, 373833), (441, 290759), (511, 250929), (569, 225351), (657, 195167), (1029, 124611), (1533, 83643), (1707, 75117), (3087, 41537), (3577, 35847), (3983, 32193), (4599, 27881), (5121, 25039), (10731, 11949)]