25493840

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7411}}^1$

素因数の和:7467

約数の個数: 40

約数和(自身を含む): 60659808

約数和(自身を除く): 35165968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 7411, 14822, 29644, 37055, 59288, 74110, 118576, 148220, 296440, 318673, 592880, 637346, 1274692, 1593365, 2549384, 3186730, 5098768, 6373460, 12746920, 25493840]

約数ペア:

[(1, 25493840), (2, 12746920), (4, 6373460), (5, 5098768), (8, 3186730), (10, 2549384), (16, 1593365), (20, 1274692), (40, 637346), (43, 592880), (80, 318673), (86, 296440), (172, 148220), (215, 118576), (344, 74110), (430, 59288), (688, 37055), (860, 29644), (1720, 14822), (3440, 7411)]