20728736

素因数分解:

$2^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3191}}^1$

素因数の和:3237

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 27534304

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 112, 116, 203, 224, 232, 406, 464, 812, 928, 1624, 3191, 3248, 6382, 6496, 12764, 22337, 25528, 44674, 51056, 89348, 92539, 102112, 178696, 185078, 357392, 370156, 647773, 714784, 740312, 1295546, 1480624, 2591092, 2961248, 5182184, 10364368, 20728736]

約数ペア:

[(1, 20728736), (2, 10364368), (4, 5182184), (7, 2961248), (8, 2591092), (14, 1480624), (16, 1295546), (28, 740312), (29, 714784), (32, 647773), (56, 370156), (58, 357392), (112, 185078), (116, 178696), (203, 102112), (224, 92539), (232, 89348), (406, 51056), (464, 44674), (812, 25528), (928, 22337), (1624, 12764), (3191, 6496), (3248, 6382)]