30903025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 44193600

約数和(自身を除く): 13290575

約数列:

[1, 5, 17, 19, 25, 43, 85, 89, 95, 215, 323, 425, 445, 475, 731, 817, 1075, 1513, 1615, 1691, 2225, 3655, 3827, 4085, 7565, 8075, 8455, 13889, 18275, 19135, 20425, 28747, 37825, 42275, 65059, 69445, 72713, 95675, 143735, 325295, 347225, 363565, 718675, 1236121, 1626475, 1817825, 6180605, 30903025]

約数ペア:

[(1, 30903025), (5, 6180605), (17, 1817825), (19, 1626475), (25, 1236121), (43, 718675), (85, 363565), (89, 347225), (95, 325295), (215, 143735), (323, 95675), (425, 72713), (445, 69445), (475, 65059), (731, 42275), (817, 37825), (1075, 28747), (1513, 20425), (1615, 19135), (1691, 18275), (2225, 13889), (3655, 8455), (3827, 8075), (4085, 7565)]