25821440

素因数分解:

$2^8\times 5^1\times {\mathrm{20173}}^1$

素因数の和:20194

約数の個数: 36

約数和(自身を含む): 61853484

約数和(自身を除く): 36032044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 20173, 40346, 80692, 100865, 161384, 201730, 322768, 403460, 645536, 806920, 1291072, 1613840, 2582144, 3227680, 5164288, 6455360, 12910720, 25821440]

約数ペア:

[(1, 25821440), (2, 12910720), (4, 6455360), (5, 5164288), (8, 3227680), (10, 2582144), (16, 1613840), (20, 1291072), (32, 806920), (40, 645536), (64, 403460), (80, 322768), (128, 201730), (160, 161384), (256, 100865), (320, 80692), (640, 40346), (1280, 20173)]