16840575

素因数分解:

$3^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:489

約数の個数: 48

約数和(自身を含む): 31520800

約数和(自身を除く): 14680225

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 135, 183, 225, 305, 409, 549, 675, 915, 1227, 1525, 1647, 2045, 2745, 3681, 4575, 6135, 8235, 10225, 11043, 13725, 18405, 24949, 30675, 41175, 55215, 74847, 92025, 124745, 224541, 276075, 374235, 623725, 673623, 1122705, 1871175, 3368115, 5613525, 16840575]

約数ペア:

[(1, 16840575), (3, 5613525), (5, 3368115), (9, 1871175), (15, 1122705), (25, 673623), (27, 623725), (45, 374235), (61, 276075), (75, 224541), (135, 124745), (183, 92025), (225, 74847), (305, 55215), (409, 41175), (549, 30675), (675, 24949), (915, 18405), (1227, 13725), (1525, 11043), (1647, 10225), (2045, 8235), (2745, 6135), (3681, 4575)]