28328248

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{647}}^1$

素因数の和:1087

約数の個数: 32

約数和(自身を含む): 57425760

約数和(自身を除く): 29097512

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 421, 647, 842, 1294, 1684, 2588, 3368, 5176, 5473, 8411, 10946, 16822, 21892, 33644, 43784, 67288, 272387, 544774, 1089548, 2179096, 3541031, 7082062, 14164124, 28328248]

約数ペア:

[(1, 28328248), (2, 14164124), (4, 7082062), (8, 3541031), (13, 2179096), (26, 1089548), (52, 544774), (104, 272387), (421, 67288), (647, 43784), (842, 33644), (1294, 21892), (1684, 16822), (2588, 10946), (3368, 8411), (5176, 5473)]