20161456

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10589}}^1$

素因数の和:10621

約数の個数: 40

約数和(自身を含む): 47273760

約数和(自身を除く): 27112304

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 10589, 21178, 42356, 74123, 84712, 148246, 169424, 180013, 296492, 360026, 592984, 720052, 1185968, 1260091, 1440104, 2520182, 2880208, 5040364, 10080728, 20161456]

約数ペア:

[(1, 20161456), (2, 10080728), (4, 5040364), (7, 2880208), (8, 2520182), (14, 1440104), (16, 1260091), (17, 1185968), (28, 720052), (34, 592984), (56, 360026), (68, 296492), (112, 180013), (119, 169424), (136, 148246), (238, 84712), (272, 74123), (476, 42356), (952, 21178), (1904, 10589)]