248688520

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{9521}}^1$

素因数の和:10185

約数の個数: 32

約数和(自身を含む): 560464920

約数和(自身を除く): 311776400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2612, 3265, 5224, 6530, 9521, 13060, 19042, 26120, 38084, 47605, 76168, 95210, 190420, 380840, 6217213, 12434426, 24868852, 31086065, 49737704, 62172130, 124344260, 248688520]

約数ペア:

[(1, 248688520), (2, 124344260), (4, 62172130), (5, 49737704), (8, 31086065), (10, 24868852), (20, 12434426), (40, 6217213), (653, 380840), (1306, 190420), (2612, 95210), (3265, 76168), (5224, 47605), (6530, 38084), (9521, 26120), (13060, 19042)]