20669425

素因数分解:

$5^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{359}}^1$

素因数の和:430

約数の個数: 36

約数和(自身を含む): 30533760

約数和(自身を除く): 9864335

約数列:

[1, 5, 7, 25, 35, 47, 49, 175, 235, 245, 329, 359, 1175, 1225, 1645, 1795, 2303, 2513, 8225, 8975, 11515, 12565, 16873, 17591, 57575, 62825, 84365, 87955, 118111, 421825, 439775, 590555, 826777, 2952775, 4133885, 20669425]

約数ペア:

[(1, 20669425), (5, 4133885), (7, 2952775), (25, 826777), (35, 590555), (47, 439775), (49, 421825), (175, 118111), (235, 87955), (245, 84365), (329, 62825), (359, 57575), (1175, 17591), (1225, 16873), (1645, 12565), (1795, 11515), (2303, 8975), (2513, 8225)]