25496320

素因数分解:

$2^8\times 5^1\times {\mathrm{19919}}^1$

素因数の和:19940

約数の個数: 36

約数和(自身を含む): 61074720

約数和(自身を除く): 35578400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 19919, 39838, 79676, 99595, 159352, 199190, 318704, 398380, 637408, 796760, 1274816, 1593520, 2549632, 3187040, 5099264, 6374080, 12748160, 25496320]

約数ペア:

[(1, 25496320), (2, 12748160), (4, 6374080), (5, 5099264), (8, 3187040), (10, 2549632), (16, 1593520), (20, 1274816), (32, 796760), (40, 637408), (64, 398380), (80, 318704), (128, 199190), (160, 159352), (256, 99595), (320, 79676), (640, 39838), (1280, 19919)]