51642880

素因数分解:

$2^9\times 5^1\times {\mathrm{20173}}^1$

素因数の和:20196

約数の個数: 40

約数和(自身を含む): 123828012

約数和(自身を除く): 72185132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 20173, 40346, 80692, 100865, 161384, 201730, 322768, 403460, 645536, 806920, 1291072, 1613840, 2582144, 3227680, 5164288, 6455360, 10328576, 12910720, 25821440, 51642880]

約数ペア:

[(1, 51642880), (2, 25821440), (4, 12910720), (5, 10328576), (8, 6455360), (10, 5164288), (16, 3227680), (20, 2582144), (32, 1613840), (40, 1291072), (64, 806920), (80, 645536), (128, 403460), (160, 322768), (256, 201730), (320, 161384), (512, 100865), (640, 80692), (1280, 40346), (2560, 20173)]