20338256

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3251}}^1$

素因数の和:3299

約数の個数: 40

約数和(自身を含む): 43550784

約数和(自身を除く): 23212528

約数列:

[1, 2, 4, 8, 16, 17, 23, 34, 46, 68, 92, 136, 184, 272, 368, 391, 782, 1564, 3128, 3251, 6256, 6502, 13004, 26008, 52016, 55267, 74773, 110534, 149546, 221068, 299092, 442136, 598184, 884272, 1196368, 1271141, 2542282, 5084564, 10169128, 20338256]

約数ペア:

[(1, 20338256), (2, 10169128), (4, 5084564), (8, 2542282), (16, 1271141), (17, 1196368), (23, 884272), (34, 598184), (46, 442136), (68, 299092), (92, 221068), (136, 149546), (184, 110534), (272, 74773), (368, 55267), (391, 52016), (782, 26008), (1564, 13004), (3128, 6502), (3251, 6256)]