18779488

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6449}}^1$

素因数の和:6479

約数の個数: 48

約数和(自身を含む): 45511200

約数和(自身を除く): 26731712

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 6449, 12898, 25796, 45143, 51592, 83837, 90286, 103184, 167674, 180572, 206368, 335348, 361144, 586859, 670696, 722288, 1173718, 1341392, 1444576, 2347436, 2682784, 4694872, 9389744, 18779488]

約数ペア:

[(1, 18779488), (2, 9389744), (4, 4694872), (7, 2682784), (8, 2347436), (13, 1444576), (14, 1341392), (16, 1173718), (26, 722288), (28, 670696), (32, 586859), (52, 361144), (56, 335348), (91, 206368), (104, 180572), (112, 167674), (182, 103184), (208, 90286), (224, 83837), (364, 51592), (416, 45143), (728, 25796), (1456, 12898), (2912, 6449)]