21753280

素因数分解:

$2^6\times 5^1\times {\mathrm{67979}}^1$

素因数の和:67996

約数の個数: 28

約数和(自身を含む): 51800760

約数和(自身を除く): 30047480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 67979, 135958, 271916, 339895, 543832, 679790, 1087664, 1359580, 2175328, 2719160, 4350656, 5438320, 10876640, 21753280]

約数ペア:

[(1, 21753280), (2, 10876640), (4, 5438320), (5, 4350656), (8, 2719160), (10, 2175328), (16, 1359580), (20, 1087664), (32, 679790), (40, 543832), (64, 339895), (80, 271916), (160, 135958), (320, 67979)]