20338400

素因数分解:

$2^5\times 5^2\times {\mathrm{25423}}^1$

素因数の和:25443

約数の個数: 36

約数和(自身を含む): 49653072

約数和(自身を除く): 29314672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 25423, 50846, 101692, 127115, 203384, 254230, 406768, 508460, 635575, 813536, 1016920, 1271150, 2033840, 2542300, 4067680, 5084600, 10169200, 20338400]

約数ペア:

[(1, 20338400), (2, 10169200), (4, 5084600), (5, 4067680), (8, 2542300), (10, 2033840), (16, 1271150), (20, 1016920), (25, 813536), (32, 635575), (40, 508460), (50, 406768), (80, 254230), (100, 203384), (160, 127115), (200, 101692), (400, 50846), (800, 25423)]