20355125

素因数分解:

$5^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{541}}^1$

素因数の和:606

約数の個数: 32

約数和(自身を含む): 29762304

約数和(自身を除く): 9407179

約数列:

[1, 5, 7, 25, 35, 43, 125, 175, 215, 301, 541, 875, 1075, 1505, 2705, 3787, 5375, 7525, 13525, 18935, 23263, 37625, 67625, 94675, 116315, 162841, 473375, 581575, 814205, 2907875, 4071025, 20355125]

約数ペア:

[(1, 20355125), (5, 4071025), (7, 2907875), (25, 814205), (35, 581575), (43, 473375), (125, 162841), (175, 116315), (215, 94675), (301, 67625), (541, 37625), (875, 23263), (1075, 18935), (1505, 13525), (2705, 7525), (3787, 5375)]