18872368

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:565

約数の個数: 40

約数和(自身を含む): 38167200

約数和(自身を除く): 19294832

約数列:

[1, 2, 4, 8, 16, 37, 71, 74, 142, 148, 284, 296, 449, 568, 592, 898, 1136, 1796, 2627, 3592, 5254, 7184, 10508, 16613, 21016, 31879, 33226, 42032, 63758, 66452, 127516, 132904, 255032, 265808, 510064, 1179523, 2359046, 4718092, 9436184, 18872368]

約数ペア:

[(1, 18872368), (2, 9436184), (4, 4718092), (8, 2359046), (16, 1179523), (37, 510064), (71, 265808), (74, 255032), (142, 132904), (148, 127516), (284, 66452), (296, 63758), (449, 42032), (568, 33226), (592, 31879), (898, 21016), (1136, 16613), (1796, 10508), (2627, 7184), (3592, 5254)]