20974325

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:341

約数の個数: 24

約数和(自身を含む): 27007200

約数和(自身を除く): 6032875

約数列:

[1, 5, 25, 43, 109, 179, 215, 545, 895, 1075, 2725, 4475, 4687, 7697, 19511, 23435, 38485, 97555, 117175, 192425, 487775, 838973, 4194865, 20974325]

約数ペア:

[(1, 20974325), (5, 4194865), (25, 838973), (43, 487775), (109, 192425), (179, 117175), (215, 97555), (545, 38485), (895, 23435), (1075, 19511), (2725, 7697), (4475, 4687)]