4456520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2591}}^1$

素因数の和:2645

約数の個数: 32

約数和(自身を含む): 10264320

約数和(自身を除く): 5807800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 2591, 5182, 10364, 12955, 20728, 25910, 51820, 103640, 111413, 222826, 445652, 557065, 891304, 1114130, 2228260, 4456520]

約数ペア:

[(1, 4456520), (2, 2228260), (4, 1114130), (5, 891304), (8, 557065), (10, 445652), (20, 222826), (40, 111413), (43, 103640), (86, 51820), (172, 25910), (215, 20728), (344, 12955), (430, 10364), (860, 5182), (1720, 2591)]