28720160

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{25643}}^1$

素因数の和:25665

約数の個数: 48

約数和(自身を含む): 77547456

約数和(自身を除く): 48827296

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 25643, 51286, 102572, 128215, 179501, 205144, 256430, 359002, 410288, 512860, 718004, 820576, 897505, 1025720, 1436008, 1795010, 2051440, 2872016, 3590020, 4102880, 5744032, 7180040, 14360080, 28720160]

約数ペア:

[(1, 28720160), (2, 14360080), (4, 7180040), (5, 5744032), (7, 4102880), (8, 3590020), (10, 2872016), (14, 2051440), (16, 1795010), (20, 1436008), (28, 1025720), (32, 897505), (35, 820576), (40, 718004), (56, 512860), (70, 410288), (80, 359002), (112, 256430), (140, 205144), (160, 179501), (224, 128215), (280, 102572), (560, 51286), (1120, 25643)]