12910720

素因数分解:

$2^7\times 5^1\times {\mathrm{20173}}^1$

素因数の和:20192

約数の個数: 32

約数和(自身を含む): 30866220

約数和(自身を除く): 17955500

約数列:

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

約数ペア:

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