19252925

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 25612200

約数和(自身を除く): 6359275

約数列:

[1, 5, 17, 25, 85, 89, 425, 445, 509, 1513, 2225, 2545, 7565, 8653, 12725, 37825, 43265, 45301, 216325, 226505, 770117, 1132525, 3850585, 19252925]

約数ペア:

[(1, 19252925), (5, 3850585), (17, 1132525), (25, 770117), (85, 226505), (89, 216325), (425, 45301), (445, 43265), (509, 37825), (1513, 12725), (2225, 8653), (2545, 7565)]