18811425

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 33608960

約数和(自身を除く): 14797535

約数列:

[1, 3, 5, 15, 19, 25, 43, 57, 75, 95, 129, 215, 285, 307, 475, 645, 817, 921, 1075, 1425, 1535, 2451, 3225, 4085, 4605, 5833, 7675, 12255, 13201, 17499, 20425, 23025, 29165, 39603, 61275, 66005, 87495, 145825, 198015, 250819, 330025, 437475, 752457, 990075, 1254095, 3762285, 6270475, 18811425]

約数ペア:

[(1, 18811425), (3, 6270475), (5, 3762285), (15, 1254095), (19, 990075), (25, 752457), (43, 437475), (57, 330025), (75, 250819), (95, 198015), (129, 145825), (215, 87495), (285, 66005), (307, 61275), (475, 39603), (645, 29165), (817, 23025), (921, 20425), (1075, 17499), (1425, 13201), (1535, 12255), (2451, 7675), (3225, 5833), (4085, 4605)]