28504700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1011

約数の個数: 72

約数和(自身を含む): 72412032

約数和(自身を除く): 43907332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 50, 70, 86, 100, 140, 172, 175, 215, 301, 350, 430, 602, 700, 860, 947, 1075, 1204, 1505, 1894, 2150, 3010, 3788, 4300, 4735, 6020, 6629, 7525, 9470, 13258, 15050, 18940, 23675, 26516, 30100, 33145, 40721, 47350, 66290, 81442, 94700, 132580, 162884, 165725, 203605, 285047, 331450, 407210, 570094, 662900, 814420, 1018025, 1140188, 1425235, 2036050, 2850470, 4072100, 5700940, 7126175, 14252350, 28504700]

約数ペア:

[(1, 28504700), (2, 14252350), (4, 7126175), (5, 5700940), (7, 4072100), (10, 2850470), (14, 2036050), (20, 1425235), (25, 1140188), (28, 1018025), (35, 814420), (43, 662900), (50, 570094), (70, 407210), (86, 331450), (100, 285047), (140, 203605), (172, 165725), (175, 162884), (215, 132580), (301, 94700), (350, 81442), (430, 66290), (602, 47350), (700, 40721), (860, 33145), (947, 30100), (1075, 26516), (1204, 23675), (1505, 18940), (1894, 15050), (2150, 13258), (3010, 9470), (3788, 7525), (4300, 6629), (4735, 6020)]