28338640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32203}}^1$

素因数の和:32227

約数の個数: 40

約数和(自身を含む): 71879328

約数和(自身を除く): 43540688

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 32203, 64406, 128812, 161015, 257624, 322030, 354233, 515248, 644060, 708466, 1288120, 1416932, 1771165, 2576240, 2833864, 3542330, 5667728, 7084660, 14169320, 28338640]

約数ペア:

[(1, 28338640), (2, 14169320), (4, 7084660), (5, 5667728), (8, 3542330), (10, 2833864), (11, 2576240), (16, 1771165), (20, 1416932), (22, 1288120), (40, 708466), (44, 644060), (55, 515248), (80, 354233), (88, 322030), (110, 257624), (176, 161015), (220, 128812), (440, 64406), (880, 32203)]