2019225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 3819200

約数和(自身を除く): 1799975

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 109, 195, 247, 285, 325, 327, 475, 545, 741, 975, 1235, 1417, 1425, 1635, 2071, 2725, 3705, 4251, 6175, 6213, 7085, 8175, 10355, 18525, 21255, 26923, 31065, 35425, 51775, 80769, 106275, 134615, 155325, 403845, 673075, 2019225]

約数ペア:

[(1, 2019225), (3, 673075), (5, 403845), (13, 155325), (15, 134615), (19, 106275), (25, 80769), (39, 51775), (57, 35425), (65, 31065), (75, 26923), (95, 21255), (109, 18525), (195, 10355), (247, 8175), (285, 7085), (325, 6213), (327, 6175), (475, 4251), (545, 3705), (741, 2725), (975, 2071), (1235, 1635), (1417, 1425)]