21465280

素因数分解:

$2^6\times 5^1\times {\mathrm{67079}}^1$

素因数の和:67096

約数の個数: 28

約数和(自身を含む): 51114960

約数和(自身を除く): 29649680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 67079, 134158, 268316, 335395, 536632, 670790, 1073264, 1341580, 2146528, 2683160, 4293056, 5366320, 10732640, 21465280]

約数ペア:

[(1, 21465280), (2, 10732640), (4, 5366320), (5, 4293056), (8, 2683160), (10, 2146528), (16, 1341580), (20, 1073264), (32, 670790), (40, 536632), (64, 335395), (80, 268316), (160, 134158), (320, 67079)]