19656320

素因数分解:

$2^7\times 5^1\times {\mathrm{30713}}^1$

素因数の和:30732

約数の個数: 32

約数和(自身を含む): 46992420

約数和(自身を除く): 27336100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 30713, 61426, 122852, 153565, 245704, 307130, 491408, 614260, 982816, 1228520, 1965632, 2457040, 3931264, 4914080, 9828160, 19656320]

約数ペア:

[(1, 19656320), (2, 9828160), (4, 4914080), (5, 3931264), (8, 2457040), (10, 1965632), (16, 1228520), (20, 982816), (32, 614260), (40, 491408), (64, 307130), (80, 245704), (128, 153565), (160, 122852), (320, 61426), (640, 30713)]