51597440

素因数分解:

$2^7\times 5^1\times {\mathrm{80621}}^1$

素因数の和:80640

約数の個数: 32

約数和(自身を含む): 123351660

約数和(自身を除く): 71754220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 80621, 161242, 322484, 403105, 644968, 806210, 1289936, 1612420, 2579872, 3224840, 5159744, 6449680, 10319488, 12899360, 25798720, 51597440]

約数ペア:

[(1, 51597440), (2, 25798720), (4, 12899360), (5, 10319488), (8, 6449680), (10, 5159744), (16, 3224840), (20, 2579872), (32, 1612420), (40, 1289936), (64, 806210), (80, 644968), (128, 403105), (160, 322484), (320, 161242), (640, 80621)]