257812055

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{19319}}^1$

素因数の和:19498

約数の個数: 16

約数和(自身を含む): 329676480

約数和(自身を除く): 71864425

約数列:

[1, 5, 17, 85, 157, 785, 2669, 13345, 19319, 96595, 328423, 1642115, 3033083, 15165415, 51562411, 257812055]

約数ペア:

[(1, 257812055), (5, 51562411), (17, 15165415), (85, 3033083), (157, 1642115), (785, 328423), (2669, 96595), (13345, 19319)]